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.

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.

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.

Eighteen-year-old Jason Rogers’ life is turned upside-down when he finds himself in the custody of an unnamed government agency that is falsely accusing him of being responsible for the explosion that caused the death of his parents. Anya is 17 - a teenager who wishes she could be normal for once - but she’s not. A secret government agency, headed by none other than her father, knows how to leverage the dangerous capability she was born with. All goes well for her until one of the agents turns on her.

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.

Jack Phillips's allergy to sunshine confines him to the shadows, leaving him lonely, and at risk of life-threatening burns every time he steps into the light. Shadow jumping on the rooftops at dusk, makes him feel alive. And free. But Jack's condition is suddenly worse than ever, and only his missing scientist dad can save him. As Jack and his new friend, Beth, begin their frantic search and delve into his dad's past for clues, they have no idea what they are about to uncover.

On the eve of his medical retirement, Navy SEAL Jedidiah Johnson receives a frantic call from his estranged childhood best friend David Yarnell. David’s daughter has been kidnapped off the streets of Nashville in broad daylight. The police have no suspects and no leads. The only clue: the body of a dead priest left behind at the scene. With the clock ticking, David is growing desperate, as is his wife, Rachel . . . Jed’s first love.

Thirty-two-year-old Jess Abbot has lost everything: her job, her apartment, and - most heart-wrenching - her eight-year-old son, Chance, to a tragic accident. Haunted by memories and grief, Jess packs what’s left and heads for the small mountain town of Pine Lake, where she takes a position as caregiver to an eccentric old woman. A rumored clairvoyant, Lucy is strange but welcoming and immediately intuits Jess as a “loose end” in need of closure. But Jess isn’t the only guest in Lucy’s large Victorian home.

By the divine promise of sacrifice, he awakened an Ash Angel with a new body, new powers, and a new war to fight. Cassandra, his temperamental trainer, tries to get him ready to battle Ghostpackers and Dreads, but it might be too little too late: for the first time in history, the Ash Angels are faltering against the fury of an evil more ancient than they are. While he fights to survive run-ins with a Sheid-hunted pop star and a gorgeous but dangerous Dread, Trace realizes his new life cannot erase the trauma of the old.

Fraser Marshall is pretty sure his career as a Spec Ops fighter is over. Yes, he’s gone into private security, working for Jones, Inc, but his last gig ended with him wounded and taken captive. And those wounds just won’t heal. The last thing he wants to do is stick around his family’s winery pressing grapes. But what choices does he have?

Briseis has a gift: she can grow plants from tiny seeds to rich blooms with a single touch. When Briseis’ aunt dies and wills her a dilapidated estate in rural New York, Bri and her parents decide to leave Brooklyn behind for the summer. Hopefully there, surrounded by plants and flowers, Bri will finally learn to control her gift. But their new home is sinister in ways they could never have imagined - it comes with a specific set of instructions, an old-school apothecary and a walled garden filled with the deadliest botanicals in the world.

Girl genius GiGi is in a lot of hot water. A whiz with computers, she agrees to help her college RA, David, uncover some top-secret information. After all, she doesn't have family or many friends, and David has always been nice to her. It doesn't hurt that he's super cute and irresistible, too. All she has to do is hack into the government's main computer system. But a few hours later, her whole life changes.

It's been seven years since Chelsea Martin embarked on her yearlong postcollege European adventure. Since then, she's lost her mother to cancer and watched her sister marry twice, while Chelsea has become one of the most talented fundraisers for the American Cancer Coalition, and with the exception of one annoyingly competent coworker, Jason, her status as most successful moneymaker is unquestioned. Then Chelsea is forced to acknowledge that her life stopped after her mother died and that the last time she can remember being happy, in love, or enjoying her life was on her year abroad.

The lights are bright in New York City, but after losing her husband three years ago, all Evie Diaz can see is her mission to keep life rock-steady for her young daughter. This includes holding on to their little Queens apartment, the beloved nanny, and her night manager position at a luxury Manhattan hotel. It isn't easy, and stroke after stroke of bad luck threatens to undo it all.

1925 New York. Arthur Kenzie's life's work is protecting the world from the supernatural relics that could destroy it. When an amulet with the power to control the tides is shipped to New York, he must intercept it before it can be used to devastating effects. This time, in order to succeed, he needs a powerful psychometric...and the only one available has sworn off his abilities altogether. Rory Brodigan's gift comes with great risk. To protect himself, he's become a recluse, redirecting his magic to find counterfeit antiques.

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.

Mystery-book aficionado Birdie Lindberg has an overactive imagination. Raised in isolation and homeschooled by strict grandparents, she's cultivated a whimsical fantasy life in which she plays the heroic detective and every stranger is a suspect. But her solitary world expands when she takes a job the summer before college, working the graveyard shift at a historic Seattle hotel. In her new job, Birdie hopes to blossom from introverted dreamer to brave pioneer, and gregarious Daniel Aoki volunteers to be her guide.

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.

The Archangel of Death is the master of taking human life. But keeping mortals alive? Not exactly Azrael's forte. For thousands of years, Azrael’s greatest enemy has been silent. Leaving him in relative peace for the first time since the great angel war. Now that silence has been broken, and the Morning Star has returned with a dangerous ultimatum: Azrael can join, or watch everything he loves be destroyed. Two lives hang in the balance - Azrael’s beloved human wife, Nadine, and their unborn, part-angel son...Warren.

Koji Owens is the new kid...again. As the only son of an Air Force F-16 pilot, he's learned to adapt and survive every time they move. It's not easy starting over with new friends and schools every two years, but when the Owens family makes their final move to New York, Koji finally has hope for a normal high school life - that is, until he finds a strange bracelet in his locker.

Tess McBray was dying. The solstice syndrome had no cure, and she resigned herself to an early grave. But just when she gave up on survival, all her symptoms mysteriously disappeared. All but one symptom, anyway. Something is wrong with Tess’ hands. They absorb any material they touch, and her skin turns to wood, steel, or concrete. It doesn’t take this comic book obsessed 21-year-old long to figure out what’s going on: somehow, she’s developed super powers. And she’s not the only one; across the country, people are coming forward and sharing their gifts with the world.

Sixteen-year-old Alice is spending the summer in Paris, but she isn't there for pastries and walks along the Seine. When her grandmother passed away two months ago, she left Alice an apartment in France that no one knew existed. An apartment that has been locked for more than 70 years. Alice is determined to find out why the apartment was abandoned and why her grandmother never once mentioned the family she left behind when she moved to America after World War II. With the help of Paul, a charming Parisian student, she sets out to uncover the truth.

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....

Kat and Stevie - best friends, theater kids, polar opposites - have snuck away from the suburbs to spend a night in New York City. They have it all planned out. They’ll see a play, eat at the city’s hottest restaurant, and have the best. Night. Ever. What could go wrong? Well. Kind of a lot? They’re barely off the train before they’re dealing with destroyed phones, family drama, and unexpected Pomeranians. Over the next few hours, they’ll have to grapple with old flames, terrible theater, and unhelpful cab drivers. But there are also cute boys to kiss, parties to crash....

Hello. My name is Stevie Cartwright, and I've been witchless for 30 days. If only there was a support group for down-on-their-luck ex-witches who've had their powers slapped right out of them (literally). Just as I was licking my wounds after returning to my hometown of Ebenezer Falls, Washington, and navigating my suddenly nonmagical existence with the help of my familiar, Belfry, things got sticky. Enter an ex-spy and newly departed spirit named Winterbottom, who's infiltrated my life with his sexy British accent and a couple of requests....

When Emmanuelle Peroni’s father - and mayor of her town - asks her to help rehab Cooper Endicott’s image, she’s horrified. Cooper drives her crazy in every way possible. But he’s also her father’s protégé, and she can’t say no to him without him finding out the reason why: Cooper and her have a messy past. So Emmanuelle reluctantly launches her father’s grand plan to get this Casanova someone to settle down with and help him lose his Lothario reputation.

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.

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.

The future has amazing technology. Our alien allies have magic. Together, we are building a training system to teach the best of humanity to go to the stars. But the training is monumentally expensive. Stephanie Morgana is a genius, she just doesn't know it. Join her on the first half of her adventure with this collected edition, including the first three megabooks in the Federal Histories series.