
The Square Root of Murder
The Professor Sophie Knowles Mysteries, Book 1
Failed to add items
Add to Cart failed.
Add to Wish List failed.
Remove from wishlist failed.
Adding to library failed
Follow podcast failed
Unfollow podcast failed
$0.99/mo for the first 3 months

Buy for $19.95
No default payment method selected.
We are sorry. We are not allowed to sell this product with the selected payment method
-
Narrated by:
-
Chris Kenworthy
About this listen
Math Professor Sophie Knowles shares her teaching venue with many other math and science faculty, most of whom she gets along with. But one in particular gives Sophie and her teaching assistant, Rachel, a hard time, thus annoying both women. When this colleague, a professor of chemistry, is found dead, poisoned in his office, Rachel is the prime suspect. It’s up to Sophie to put her talent for designing and solving puzzles to use to find his killer.
©2011 Camille Minichino (P)2019 David N. WilsonListeners also enjoyed...
-
Murder at Cold Creek College
- Cold Creek Mysteries, Book 1
- By: Christa Nardi
- Narrated by: Alyssa Baumann
- Length: 6 hrs and 51 mins
- Unabridged
-
Overall
-
Performance
-
Story
A dead colleague isn't the best way to start a semester, or a romance. Although Sheridan Hendley is not a sleuth, when her colleague is murdered, she assists the detective in gathering information.
-
-
Phenomenal
- By Blackeagle on 10-04-23
By: Christa Nardi
-
The Marlow Murder Club
- Marlow Murder Club, Book 1
- By: Robert Thorogood
- Narrated by: Nicolette McKenzie
- Length: 9 hrs and 47 mins
- Unabridged
-
Overall
-
Performance
-
Story
Judith Potts is 77 years old and blissfully happy. She lives on her own in a faded mansion just outside Marlow, there’s no man in her life to tell her what to do or how much whisky to drink, and to keep herself busy she sets crosswords for The Times newspaper. One evening, while out swimming in the Thames, Judith witnesses a brutal murder. The local police don’t believe her story, so she decides to investigate for herself and is soon joined in her quest by Suzie, a salt-of-the-earth dog-walker, and Becks, the prim and proper wife of the local vicar.
-
-
An awful lot like Thursday Murder Club!
- By Margaret on 06-11-22
By: Robert Thorogood
-
Bunburry 1-3
- A Cosy Mystery Compilation
- By: Helena Marchmont
- Narrated by: Nathaniel Parker
- Length: 8 hrs and 48 mins
- Unabridged
-
Overall
-
Performance
-
Story
In "Murder at the Mousetrap," the first Bunburry book, fudge-making and quaffing real ale in the local pub are matched by an undercurrent of passion, jealousy, hatred and murder - laced with a welcome dose of humour. Alfie McAlister has retreated from London to the peace and quiet of the country to recover from a personal tragedy. But an accidental death - which may have been no accident - reveals that the heart of England is far from the tranquil backwater he imagined.
-
-
Lovely, sweet story and superb narration
- By Laura Stone on 01-19-20
By: Helena Marchmont
-
A New Place, Another Murder
- A Sheridan Hendley Mystery, Book 1
- By: Christa Nardi
- Narrated by: Jeanne Pilgrim Mayo
- Length: 4 hrs
- Unabridged
-
Overall
-
Performance
-
Story
Sheridan Hendley is starting her new life as wife and step-mom, but is not employed, and has too much time on her hands. That is, until her step-daughter and friend are framed for theft and murder. Sheridan discovers the powerful family in her small town. Only she asks too many questions, and now is a target.
-
-
Guilty, or a set up?
- By Mary Moon on 01-30-22
By: Christa Nardi
-
Two Parts Sugar, One Part Murder
- Baker Mysteries, Book 1
- By: Valerie Burns
- Narrated by: Jasmin Walker
- Length: 6 hrs and 30 mins
- Unabridged
-
Overall
-
Performance
-
Story
When Maddy Montgomery’s groom is a no-show to their livestream wedding, it’s a disaster that no amount of filtering can fix. But a surprise inheritance offers a chance to regroup and rebrand—as long as Maddy is willing to live in her late, great-aunt Octavia’s house in New Bison, Michigan, for a year, running her bakery and caring for a 250-pound English mastiff named Baby. Maddy feels ready to tackle any challenge, including Octavia’s award-winning cake recipes. That is, until New Bison’s mayor is fatally stabbed, and Maddy’s fingerprints are found on the knife.…
-
-
Too much hash tag
- By Readaholic on 09-07-22
By: Valerie Burns
-
Think Murder
- Adina Donati, Accidental Sleuth, Book 1
- By: Cassidy Salem
- Narrated by: Melissa Haley
- Length: 3 hrs and 58 mins
- Unabridged
-
Overall
-
Performance
-
Story
Adina Donati came to Washington DC to find excitement, not a dead body. When a friend is murdered, Adina is drawn into the middle of the police investigation. Tensions rise as the suspect list expands to include Adina, her friends, and colleagues at the prestigious think tank where she works. But every cloud has a silver lining. Between the nice detective, the hot new volunteer at the dog rescue center, and the newly available preppy ex-boyfriend, Adina’s dating dry spell appears near its end. That is, if she doesn’t become the next victim.
-
-
This book is suited for YA or Beginning readers
- By Grams2many on 04-29-23
By: Cassidy Salem
-
Murder at Cold Creek College
- Cold Creek Mysteries, Book 1
- By: Christa Nardi
- Narrated by: Alyssa Baumann
- Length: 6 hrs and 51 mins
- Unabridged
-
Overall
-
Performance
-
Story
A dead colleague isn't the best way to start a semester, or a romance. Although Sheridan Hendley is not a sleuth, when her colleague is murdered, she assists the detective in gathering information.
-
-
Phenomenal
- By Blackeagle on 10-04-23
By: Christa Nardi
-
The Marlow Murder Club
- Marlow Murder Club, Book 1
- By: Robert Thorogood
- Narrated by: Nicolette McKenzie
- Length: 9 hrs and 47 mins
- Unabridged
-
Overall
-
Performance
-
Story
Judith Potts is 77 years old and blissfully happy. She lives on her own in a faded mansion just outside Marlow, there’s no man in her life to tell her what to do or how much whisky to drink, and to keep herself busy she sets crosswords for The Times newspaper. One evening, while out swimming in the Thames, Judith witnesses a brutal murder. The local police don’t believe her story, so she decides to investigate for herself and is soon joined in her quest by Suzie, a salt-of-the-earth dog-walker, and Becks, the prim and proper wife of the local vicar.
-
-
An awful lot like Thursday Murder Club!
- By Margaret on 06-11-22
By: Robert Thorogood
-
Bunburry 1-3
- A Cosy Mystery Compilation
- By: Helena Marchmont
- Narrated by: Nathaniel Parker
- Length: 8 hrs and 48 mins
- Unabridged
-
Overall
-
Performance
-
Story
In "Murder at the Mousetrap," the first Bunburry book, fudge-making and quaffing real ale in the local pub are matched by an undercurrent of passion, jealousy, hatred and murder - laced with a welcome dose of humour. Alfie McAlister has retreated from London to the peace and quiet of the country to recover from a personal tragedy. But an accidental death - which may have been no accident - reveals that the heart of England is far from the tranquil backwater he imagined.
-
-
Lovely, sweet story and superb narration
- By Laura Stone on 01-19-20
By: Helena Marchmont
-
A New Place, Another Murder
- A Sheridan Hendley Mystery, Book 1
- By: Christa Nardi
- Narrated by: Jeanne Pilgrim Mayo
- Length: 4 hrs
- Unabridged
-
Overall
-
Performance
-
Story
Sheridan Hendley is starting her new life as wife and step-mom, but is not employed, and has too much time on her hands. That is, until her step-daughter and friend are framed for theft and murder. Sheridan discovers the powerful family in her small town. Only she asks too many questions, and now is a target.
-
-
Guilty, or a set up?
- By Mary Moon on 01-30-22
By: Christa Nardi
-
Two Parts Sugar, One Part Murder
- Baker Mysteries, Book 1
- By: Valerie Burns
- Narrated by: Jasmin Walker
- Length: 6 hrs and 30 mins
- Unabridged
-
Overall
-
Performance
-
Story
When Maddy Montgomery’s groom is a no-show to their livestream wedding, it’s a disaster that no amount of filtering can fix. But a surprise inheritance offers a chance to regroup and rebrand—as long as Maddy is willing to live in her late, great-aunt Octavia’s house in New Bison, Michigan, for a year, running her bakery and caring for a 250-pound English mastiff named Baby. Maddy feels ready to tackle any challenge, including Octavia’s award-winning cake recipes. That is, until New Bison’s mayor is fatally stabbed, and Maddy’s fingerprints are found on the knife.…
-
-
Too much hash tag
- By Readaholic on 09-07-22
By: Valerie Burns
-
Think Murder
- Adina Donati, Accidental Sleuth, Book 1
- By: Cassidy Salem
- Narrated by: Melissa Haley
- Length: 3 hrs and 58 mins
- Unabridged
-
Overall
-
Performance
-
Story
Adina Donati came to Washington DC to find excitement, not a dead body. When a friend is murdered, Adina is drawn into the middle of the police investigation. Tensions rise as the suspect list expands to include Adina, her friends, and colleagues at the prestigious think tank where she works. But every cloud has a silver lining. Between the nice detective, the hot new volunteer at the dog rescue center, and the newly available preppy ex-boyfriend, Adina’s dating dry spell appears near its end. That is, if she doesn’t become the next victim.
-
-
This book is suited for YA or Beginning readers
- By Grams2many on 04-29-23
By: Cassidy Salem
-
The Dispatcher
- By: John Scalzi
- Narrated by: Zachary Quinto
- Length: 2 hrs and 18 mins
- Unabridged
-
Overall
-
Performance
-
Story
Zachary Quinto - best known for his role as the Nimoy-approved Spock in the recent Star Trek reboot and the menacing, power-stealing serial killer, Sylar, in Heroes - brings his well-earned sci-fi credentials and simmering intensity to this audio-exclusive novella from master storyteller John Scalzi. One day, not long from now, it becomes almost impossible to murder anyone - 999 times out of a thousand, anyone who is intentionally killed comes back. How? We don't know.
-
-
IT'S HARD TO GET MYSTICAL ABOUT YOUR JOB
- By Jim "The Impatient" on 10-05-16
By: John Scalzi
-
And Then There Were None
- By: Agatha Christie
- Narrated by: Dan Stevens
- Length: 6 hrs and 1 min
- Unabridged
-
Overall
-
Performance
-
Story
Ten strangers are lured to an isolated island mansion off the Devon coast by a mysterious "U.N. Owen". At dinner a recorded message accuses each of them in turn of having a guilty secret, and by the end of the night one of the guests is dead. Stranded by a violent storm, and haunted by a nursery rhyme counting down one by one...one by one they begin to die. Who among them is the killer? And will any of them survive?
-
-
Dan Stevens is genius
- By Markie Ross on 09-17-15
By: Agatha Christie
-
Whitefish
- A Brad Kelso Novel
- By: Russell Myers
- Narrated by: Brian Callanan
- Length: 7 hrs and 56 mins
- Unabridged
-
Overall
-
Performance
-
Story
Brad Kelso spends most of his time these days building decks and fences, or remodeling bathrooms. The government agency he used to work for rehires him to locate a killer on the island of Kodiak, Alaska. Brad's mission is simple; he must locate the person who murdered his friend. The person who the agency calls "Whitefish".
-
-
Manhunt
- By Victor @ theAudiobookBlog dot com on 05-24-22
By: Russell Myers
-
The Murderer's Son
- A Jackman and Evans Thriller
- By: Joy Ellis
- Narrated by: Richard Armitage
- Length: 9 hrs and 30 mins
- Unabridged
-
Overall
-
Performance
-
Story
Crimebusting duo DI Jackman and DS Evans are back, solving another crime that will make your skin crawl. Twenty years ago: a farmer and his wife are cut to pieces by a ruthless serial killer. Now: a woman is viciously stabbed to death in the upmarket kitchen of her beautiful house on the edge of the marshes. Then a man called Daniel Kinder walks into Saltern police station and confesses to the murder. But DI Rowan Jackman and DS Marie Evans of the Fenland Constabulary soon discover that there is a lot more to Daniel than meets the eye.
-
-
Audible ruined this one for me.
- By Julie on 12-29-18
By: Joy Ellis
-
A Litter of Bones: A Scottish Crime Thriller
- DCI Logan Crime Thrillers, Book 1
- By: JD Kirk
- Narrated by: Angus King
- Length: 7 hrs and 31 mins
- Unabridged
-
Overall
-
Performance
-
Story
Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?
-
-
High hopes dashed: not just a little bit of child and animal torture
- By greyhound on 07-01-20
By: JD Kirk
-
The Sisters
- By: Dervla McTiernan
- Narrated by: Aoife McMahon
- Length: 3 hrs and 8 mins
- Original Recording
-
Overall
-
Performance
-
Story
In this prequel to the international best seller The Ruin, set 10 years prior, bright-eyed Carrie Ryan is at the very start of her career. When she has a hunch about an ongoing murder investigation, she knows it could be her only chance to prove herself and truly break into the “boys' club” of Dublin’s police force.
-
-
Look forward to hearing more from this author
- By C. E. Pitchford on 09-09-19
By: Dervla McTiernan
-
Gone to Dust
- By: Matt Goldman
- Narrated by: MacLeod Andrews
- Length: 7 hrs and 24 mins
- Unabridged
-
Overall
-
Performance
-
Story
A brutal crime. The ultimate cover-up. How do you solve a murder with no useable evidence? Private detective Nils Shapiro is focused on forgetting his ex-wife and keeping warm during another Minneapolis winter when a former colleague, neighboring Edina Police Detective Anders Ellegaard, calls with the impossible.
-
-
Great discovery
- By green ice cream garden on 10-04-17
By: Matt Goldman
-
A Share in Death
- By: Deborah Crombie
- Narrated by: Michael Deehy
- Length: 7 hrs and 3 mins
- Unabridged
-
Overall
-
Performance
-
Story
A week's holiday in a luxurious hotel is just what Scotland Yard's Superintendent Duncan Kincaid needs. But his vacation ends dramatically with the discovery of a dead body in the whirlpool bath. Despite a suspicious lack of cooperation from the local constabulary, Kincaid's keen sense of duty won't allow him to ignore the heinous crime, impelling him to send for his enthusiastic young assistant, Sergeant Gemma James. But the stakes are raised significantly when a second murder occurs....
-
-
series readers, start here
- By connie on 02-09-13
By: Deborah Crombie
-
First Deadly Conspiracy - Box Set
- McRyan Mystery Series, Books 1-3
- By: Roger Stelljes
- Narrated by: Johnny Peppers
- Length: 26 hrs and 1 min
- Unabridged
-
Overall
-
Performance
-
Story
Fans of mysteries, thrillers, and suspense will enjoy these fast-moving stories of murder, greed, and treason, the cast of colorful characters, and their setting in and around historic St. Paul, Minnesota. This bundle includes First Case, The St. Paul Conspiracy, and Deadly Stillwater.
-
-
3.5 stars OK Series
- By Lia on 09-04-17
By: Roger Stelljes
-
Black Heart
- Detective Dan Riley, Book 1
- By: Anna-Lou Weatherley
- Narrated by: James Lailey
- Length: 9 hrs and 4 mins
- Unabridged
-
Overall
-
Performance
-
Story
When Nigel Baxter, a middle-aged married banker with an unremarkable past, is found dead in the bath of a plush hotel suite, his wrists slit, it looks as if he's taken his own life. At first. But when Detective Inspector Daniel Riley is assigned to the case, he soon realises all isn't as it first appears to be. When a postmortem shows Baxter was poisoned, Riley suspects foul play. And then there's the odd addition of a teddy bear left at the crime scene....
-
-
Difficult to Love
- By Lynn on 06-06-20
-
A Day Ago
- Prequel to the Mylas Grey Mystery Series (Mylas Grey Mysteries)
- By: Luana Ehrlich
- Narrated by: Steve Twitchell
- Length: 4 hrs and 31 mins
- Unabridged
-
Overall
-
Performance
-
Story
He isn’t prepared for the situation . . .Mylas always thought the owner of the McKinney Law Firm, where he’s employed, would outlive him, so when the owner suffers a fatal heart attack, Mylas suddenly faces an uncertain future, his hope of a partnership shattered. He isn’t prepared for the consequences . . .When Mylas learns he’s mentioned in the will, he expects to receive a small token of appreciation for his years of service to the firm, but then, when everyone assembles to hear the reading of the will, things take a bizarre turn with unexpected consequences.
-
-
Loved this audio book
- By James A. Nichols on 05-30-24
By: Luana Ehrlich
-
Trent's Last Case
- By: E C. Bentley
- Narrated by: Simon Vance
- Length: 7 hrs and 3 mins
- Unabridged
-
Overall
-
Performance
-
Story
Considered by many to be the first modern mystery novel, Trent's Last Case introduces the gentleman sleuth Philip Trent, a freelance reporter and invistigator. Trent becomes involved in the case of the murder of millionaire American financier Sigsbee Manderson, slain while on holiday in England.
-
-
A real find!
- By Roxane on 06-17-10
By: E C. Bentley
What listeners say about The Square Root of Murder
Highly rated for:
Reviews - Please select the tabs below to change the source of reviews.
-
Overall
-
Performance
-
Story
- Kathy in CA
- 03-28-20
Decent Plot, Little Characterization
Thank goodness for clever university math associate professors, since the police clearly don't deserve to be told the full truth by anyone!
Obviously I meant that to be sarcastic, but it's an accurate representation of the plot. None of the main characters give the police enough information to do anything to solve this mystery, to the point of outright obstruction and their own personal detriment. The plot is engaging enough; the problem is that I simply didn't like any of the characters. They're not very sympathetic or well developed, and the main character is largely unfeeling toward the people around her. In short, I wouldn't want to be friends with any of them except maybe her boyfriend and one of the cops.
The narrator has a couple of noticeable pronunciation traits but does a good job overall.
It's OK, but I'm not interested in book 2.
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
-
Overall
-
Performance
-
Story
- Victoria J. Mejia-Gewe
- 01-04-20
Creative new angle for a mystery
I really enjoyed this book, especially because I have read many cozy mysteries with English teachers or librarians or book store owners, but this is the first I've encountered that featured a math professor! It was interesting and fun. I look forward to future books coming out soon!
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
2 people found this helpful
-
Overall
-
Performance
-
Story
- mbb0623
- 01-07-23
A Different type of Cozy Mystery
This cozy mystery is not like many of the others. This one involves a math professor. One who loves to solve puzzles. Using the puzzle solving techniques that she has learned over the years, she sets out to solve the mystery of the murder of a fellow professor and exonerate her assistant. A little lengthy for the actual story, but it holds your attention.
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful
-
Overall
-
Performance
-
Story
- Short Sweet and Cozy
- 02-17-22
Math, Mystery and Great Characters!
The Square Root of Murder is the debut book in the Sophie Knowles cozy mystery series. It is an enjoyable book with likable characters and an interesting mystery that kept me guessing. Sophie teaches Math at a small college in MA. An unpopular professor ends up dead and Sophie needs to clear her friend from the suspect list. It is an enjoyable cozy mystery but I found the descriptions were often too much (too many details and too long). Overall, it was good and I will read the next book. The audiobook is narrated by Chris Kenworthy who did a great job and made the characters unique and the audiobook was easy to follow. I received a copy of the audiobook from Camille Minichino for an honest review.
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful
-
Overall
-
Performance
-
Story
- Kindle Customer DVH
- 02-08-22
Outstanding murder!
The Square Root of Murder is Book 1 of Professor Sophie Knowles Mystery by Camille Minichino. This mystery was very good. I thought the characters were well written and realistic. I was not sad when the Chemistry Professor was poisoned...my bad, he was a jerk! One thing I really enjoyed was the depth of the clues, I really had to think. Chris Kenworthy gave a wonderful performance as narrator. This is a really good series.
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful
-
Overall
-
Performance
-
Story
- Ellen Oceanside
- 02-22-20
Puzzling Murder
Math Professor, puzzles and a murder mystery makes a good combination.MInteresting characters, especially liked Sophie and how they figured it out.
Given audio for my voluntary review and my honest opinion
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful
-
Overall
-
Performance
-
Story
- A Hello Kitty Enthusiast
- 01-12-20
Nice and cozy little mystery.
As a fan of fast paced thrillers and mysteries, this was a nice 'break" from them while still using my noggin to figure it out before the narrator got to it. The narrator's voice fits very well with the pace of this book. An excellent book for young adults that love mysteries, or someone looking to dip their toes in this genre. Sophie really should change careers and become an investigator!
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful
-
Overall
-
Performance
-
Story
- Kindle Customer
- 05-11-20
The Square Root of Murder
This book was my introduction to the author. I received the audiobook for free with the promise of an honest review.
I am happy to be able to say that I enjoyed this book. The main character is a Math Professor and puzzle author. It helps make the idea that a civilian is solving crimes a little more believable. I enjoyed the twists and the mystery, I am looking forward to the next book!
I liked the tone and inflection of the narration, but it was a little slow for my taste. I listened to the book at 1.35x and it was perfect!
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
-
Overall
-
Performance
-
Story
- Mary Grace Shelton
- 04-01-21
Very good!!
I enjoyed every second of this book and couldn't stop listening! I stayed intrigued and interested the whole time. Very interesting concepts of stories! Highly recommend!
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
-
Overall
-
Performance
-
Story
- P.L.
- 02-09-20
A well-written and well-voiced mystery audiobook!
I listened to this book via Audible. This was a very entertaining and well-written cozy mystery by Camille Minichino expertly read by the wonderfully talented Chris Kenworthy. I highly recommend!
Something went wrong. Please try again in a few minutes.
You voted on this review!
You reported this review!
1 person found this helpful