What would happen if you discovered that your family was one of the most powerful in human history? What if you were told that the source of the family's power was hidden around the world, in the form of 39 Clues? What if you were given a choice - take a million dollars and walk away...or get the first Clue? If you're Amy and Dan Cahill, you take the Clue - and begin a very dangerous race.

Jack loves his childhood toy Dur Pig. DP has always been there for him, through good and bad. Until one Christmas Eve something terrible happens - DP is lost. But Christmas Eve is a night for miracles and lost causes, a night when all things can come to life...even toys. And Jack’s newest toy - the Christmas Pig (DP’s annoying replacement) - has a daring plan: Together they’ll embark on a magical journey to seek something lost and to save the best friend Jack has ever known....

Linus Baker is a by-the-book case worker in the Department in Charge of Magical Youth. He's tasked with determining whether six dangerous magical children are likely to bring about the end of the world. Arthur Parnassus is the master of the orphanage. He would do anything to keep the children safe, even if it means the world will burn. And his secrets will come to light.

Living and slaving in Fill City One, you get used to the smell. We call it the Everpresent Stink. But every once in a while, on a spring day with a breeze, it clears away enough to remind us that there is something more out there. Most Fillers' wildest dreams would be just to get past the walls and live in the mainland. But my dream? It’s a little bigger. I’m going to Mars.

The world is devolving into chaos as a game-like system has reduced the population to a series of statistics and screens. Confusion reigns as everyone struggles to survive in this new reality. Everyone but one man. Anthony Franklin has a secret. One that gives him an edge. He has lived through this exact series of events...99 times in a row.

Twelve-year-old Barbary is emigrating from Earth to Einstein, an orbital space station. Researchers and diplomats on board the station are preparing to meet the first alien spacecraft to visit the solar system. Barbary wants to stay with her new sister, Heather, and Heather's father Yoshi. But Barbary is keeping a secret, and if her secret is discovered, she could be sent back to Earth.

Dane and Mandy, a popular magic act for 40 years, are tragically separated by a car wreck that claims Mandy’s life—or so everyone thinks. Even as Dane mourns and tries to rebuild his life without her, Mandy, supposedly dead, awakes in the present as the19-year-old she was in 1970.

Oak Island, Nova Scotia. Breanne Moore blames herself for her mother’s tragic death. So when her archaeologist father is invited on an exciting new dig, she’s determined to tag along and keep him safe. But as the mystery leads them closer to the island’s secret, Breanne’s dreams are filled with visions of a strange boy she’s never met...and a world of flaming carnage.

Amari Peters has never stopped believing her missing brother, Quinton, is alive. Not even when the police told her otherwise, or when she got in trouble for standing up to bullies who said he was gone for good. So when she finds a ticking briefcase in his closet, containing a nomination for a summer tryout at the Bureau of Supernatural Affairs, she’s certain the secretive organization holds the key to locating Quinton - if only she can wrap her head around the idea of magicians, fairies, aliens, and other supernatural creatures all being real.

Listen up, kid. My name is Dr. Cecil H.H. Mills. I’m the author of this book and many other ones that you might not have heard of. This book is about two idiot wannabe detective-types. Their names are J.J. and Valentine Watts, but I’m not sure if they’re actually brothers or not. They make a friend; her name is Trudi de la Rosa. She’s a wannabe detective-type too, but honestly, she’s less of an idiot than the brothers.

Enter the world of Britfield: Adventure, intrigue, conspiracy, mystery, and suspense! Tom has spent the majority of his life locked behind the cruel walls of Weatherly orphanage, but when he learns that his parents might actually be alive, Tom is determined to find them. Together, with his best friend Sarah and armed with only the word “Britfield” as a clue to Tom’s mysterious past, the two make a daring escape. Now, they are on the run from a famous Scotland Yard detective and what appears to be half of the police officers in England!

Meet Gabe: a good guy making the best of eternity in a place not known for its hospitality. That is, until he's recruited by Judas Iscariot (yes, that Judas) to join a covert team of double agents dedicated to thwarting the chaos unleashed on Earth. Gabe, armed only with his quick wit and zero knowledge of the modern world, must navigate his new role alongside a beautiful, tough-as-nails partner. Together, they must prevent disaster without blowing their cover or revealing Gabe’s true identity.

Sam Wentworth grew up with nothing. She’s worked tirelessly just to get through college and earn her first monster. Bankrupt and exhausted, she sets her sights on fame and fortune in Maiyamon arenas. Instead, Sam’s caught between battling the rampaging elemental creatures abandoned by their owners and standing up to a toxic group intent on ending the game forever. With her flame fox cub, Finn, at her side, Sam sets out to build a team capable of protecting both innocent people’s lives and the creatures she loves. That’s the easy part.

Seventeen-year-old Buddy Lewek has spent most of his life trying to escape the Lower East Side slums of New York City.Working as a delivery boy to support his family, Buddy wants to become an artist, a dream he’s sure will never be realized. But that all changes when a delivery job puts him face-to-face with Mister Joey Drew, the eccentric owner of an animation studio. Mister Drew takes Buddy under his wing as an apprentice, thrusting him into a world unlike anything Buddy has ever seen before.

Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time.