There’s more than meets the eye when it comes to solving the world’s most curious capers. For middle school detectives Ava and Carol, it means sticking together, using their heads, and making sure justice is served swiftly and fairly. No matter where the trail may lead, Amy and Carol are on the case. Now, you too can give chase to jewel thieves, criminals, and power-hungry pilferers everywhere alongside this amazing dynamic duo.

Before Jake’s grandfather died, he was on the trail of a centuries-old mystery. And he has entrusted that mystery to Jake, leaving behind a set of hidden codes, riddles, maps, and other clues that lead Jake and his friends on a scavenger hunt into the heart of Colorado’s wild and rugged Rocky Mountain National Park.

When Stella and her younger brother, Tom, move to their new London home, they become mystified by the disappearances of Harry, their elderly neighbor's small dog. Where does he go? And why does he keep reappearing wet-through? Their quest to solve the riddle over the summer holidays leads to a boat buried under a grassy mound, and a tunnel that takes them to a secret lake.

Secret of the Staircase: Something's lurking beneath the famous staircase at The Jefferson, Richmond's historic downtown hotel. Back in 1895, when the hotel opened, real alligators roamed free in the courtyard fountains. That was ages ago...or was it? When young brothers Sam and Derek arrive at The Jefferson for an elegant wedding weekend with their parents, they love exploring the old hotel. But when the wedding rings go missing and Sam is blamed, the boys and their friends must hunt down the truth no matter where it leads.

Twelve-year-old cousins Sophie and Jessica don’t have much in common. Sophie loves hiking and her small town. Jessica would rather be shopping in a city. The only mystery is how they’ll be able to spend the summer together. Then they find a briefcase in the forest with a surprise inside. When they hear footsteps behind them and bad guys run after them, they have no choice but to work together to solve the mystery of the feather chase.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

Eleven-year-old Charlie Reese has been making the same secret wish every day since fourth grade. But when she is sent to the Blue Ridge Mountains of North Carolina to live with family she barely knows, it seems unlikely that her wish will ever come true. That is until she meets Wishbone, a skinny stray dog who captures her heart, and Howard, a neighbor boy who proves surprising in lots of ways. Suddenly Charlie is in serious danger of discovering that what she thought she wanted may not be what she needs at all.

Lucy Callahan was struck by lightning. She doesn't remember it, but it changed her life forever. The zap gave her genius-level math skills, and ever since, Lucy has been homeschooled. Now, at 12 years old, she's technically ready for college. She just has to pass one more test: middle school! Lucy's grandma insists: Go to middle school for one year. Make one friend. Join one activity. And read one book (that's not a math textbook!). Lucy's not sure what a girl who does calculus homework for fun can possibly learn in seventh grade.

The moving story of an orphan, determined to know her own history, who discovers the true meaning of family. Twelve-year-old Crow has lived her entire life on a tiny, isolated piece of the starkly beautiful Elizabeth Islands in Massachusetts. Abandoned and set adrift in a small boat when she was just hours old, Crow’s only companions are Osh, the man who rescued and raised her, and Miss Maggie, their fierce and affectionate neighbor across the sandbar.

Ally has been smart enough to fool a lot of smart people. Every time she lands in a new school, she is able to hide her inability to read by creating clever yet disruptive distractions. She is afraid to ask for help; after all, how can you cure dumb? However, her newest teacher Mr. Daniels sees the bright, creative kid underneath the trouble maker. With his help, Ally learns not to be so hard on herself and that dyslexia is nothing to be ashamed of.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

The moment they saw each other, Bean and Ivy knew they wouldn't be friends. But when Bean plays a joke on her sister, Nancy, and has to quickly hide and Ivy comes to the rescue, it proves that sometimes the best of friends are people never meant to like each other. Vibrant characters and lots of humor make this a charming and addictive introduction to the Ivy and Bean book series. From beloved children's book author Annie Barrows, the Ivy & Bean collection has been delighting preschool, kindergarten, elementary, and kids of all ages for nearly two decades.

Emerson Knight is introverted and eccentric and has little to no sense of social etiquette. Good thing he's also brilliant, rich, and (some people might say) handsome, or he'd probably be homeless. Riley Moon has just graduated from Harvard Business and Harvard Law. Her aggressive Texas spitfire attitude has helped her land her dream job as a junior analyst with megabank Blane-Grunwald. At least Riley Moon thought it was her dream job, until she is given her first assignment: babysitting Emerson Knight.

Living in the luxurious Arcanum building—with its interior balconies perfect for playing tag, an elevator like an iron birdcage, and quirky neighbors behind every apartment door—has always been fun and games for twelve-year-old Minerva Keen…until her neighbors start getting poisoned. Anyone could be next, and everyone is a suspect, including Minerva herself. To clear her name and help the police crack the case, Minerva starts her own detective club.

Twelve-year-old Samantha Wolf, and her best friend Ally, are excited to spend part of their summer break in the mountains of Montana. But unbeknownst to them, Hollow Inn is bathed in mystery and legend. After arriving, they soon discover that things are not going well for Sam's Aunt and Uncle, who own the Inn. There's vandalism, ghostly sightings and rumors of lost treasures. Determined to help, Sam and Ally embark on a challenging journey to discover the truth.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

In a charming cozy mystery series debut, Leslie Nagel's irrepressible small-town heroine finds that her fellow book club members may be taking their Agatha Christie a bit too literally - and murder a bit too lightly.

It’s wintertime at Greenglass House. The creaky smuggler’s inn is always quiet during this season, and 12-year-old Milo, the innkeepers’ adopted son, plans to spend his holidays relaxing. But on the first icy night of vacation, out of nowhere, the guest bell rings. Then rings again. And again....

As soon as Seneca Frazier sees the post on the Case Not Closed website about Helena Kelly, she's hooked. Helena's high-profile disappearance five years earlier is the one that originally got Seneca addicted to true crime. It's the reason she's a member of the site in the first place. So when Maddy Wright, her best friend from the CNC site, invites Seneca to spend spring break in Connecticut looking into the cold case, she immediately packs her bag.

Texas genealogist Lucy Lancaster deals with murders in both the past and present in this captivating first mystery in the Ancestry Detective series.

Prepare for thrills and chills as three acclaimed authors unite in Twisted Fate, a spine-tingling collection of stories: Hunted by Traci Hunter Abramson; Death House by Gregg Luke; and Haunting Reminders by Stephanie Black.

The globe-trotting thief in the red fedora returns! And now, the question isn't where—but who? In the role of Carmen Sandiego, award-winning performer Kyla Garcia reveals, for the very first time, the backstory of the ever-elusive master criminal whose whereabouts captured the imaginations of children everywhere—through educational video games, animated series, and a popular PBS "gameshow" for middle schoolers in the 1990s.

Nate doesn’t want to listen. He’s between missions and just wants to relax, not to travel hundreds of miles and hunt for the driver of the car that hit someone he doesn’t even know. But ignoring the call is not an option. What Nate had hoped would be a simple mission turns into something much more sinister, when he discovers a wide-reaching evil, festering in a small Northern California town. To confront it, he will need all the skills he’s learned working in the shadow world.

Cruz Coronado leaves his tranquil home in Hawaii to join 23 talented kids from around the globe to train at the Explorer Academy with the world's leading scientists to become the next generation of great explorers. But for Cruz, there's more at stake. No sooner has he arrived at the Academy than he discovers that his family has a mysterious past with the organization that could jeopardize his future. In the midst of codebreaking and cool classes, new friends, and augmented reality expeditions, Cruz must tackle the biggest question of all: Who is out to get him, and why?

After a botched escape plan from her boarding school, Abigail is stunned to discover the school is actually a cover for an elite spy ring called The Center, along with being training grounds for future spies. Even more shocking? Abigail's mother is a top agent for The Center and she has gone MIA, with valuable information that many people would like to have - at any cost. Along with a former nemesis and charming boy from her grade, Abigail goes through a crash course in Spy Training 101, often with hilarious - and sometimes painful - results.

The summer is winding down in San Diego. Veronica is bored, caustically charismatic, and uninspired in her photography. Nico is insatiable, subversive, and obsessed with chaotic performance art. They’re artists first, best friends second. But that was before Mick. Delicate, lonely, magnetic Mick: the perfect subject and Veronica’s dream girl. The days are long and hot - full of adventure - and soon they are falling in love. Falling so hard, they never imagine what comes next. One fire. Two murders. Three drowning bodies. One suspect...one stalker.

Welcome to Echo Falls. Home of a thousand secrets, where Ingrid Levin-Hill, super sleuth, never knows what will happen next.

The Menagerie trilogy comes to a fantastic conclusion in Krakens and Lies, the third magical and mysterious adventure from Tui T. Sutherland and Kari H. Sutherland. Someone has been sabotaging the Menagerie, and Logan and Zoe are on the case. But their troubles only get worse when the basilisk escapes its enclosure and the merpeople go on strike - leaving the kraken to its own devices. The race is on to solve the mystery and save the Menagerie in this riveting, action-packed finale!

It's been said that all great literature boils down to one of two stories—a man takes a journey, or a stranger comes to town. While mystery writers have been successfully using both approaches for generations, there's something undeniably alluring in the nature of a stranger: the uninvited guest, the unacquainted neighbor, the fish out of water. In the newest collection of stories by the Mystery Writers of America, each author weaves a fresh tale surrounding the eerie feeling that comes when a stranger enters our midst, featuring stories by prolific mystery writers.

The streets of San Francisco would be lined with hardcovers if rare book expert Brooklyn Wainwright had her way. And her mentor wouldn't be lying in a pool of his own blood on the eve of a celebration for his latest book restoration. With his final breath he leaves Brooklyn a cryptic message, and gives her a priceless - and supposedly cursed - copy of Goethe's Faust for safekeeping.