"Thirteen-year-old twins Hope and Gordon enter a spelling bee in a last-ditch effort to save their family from financial ruin, only to find themselves in a cut-throat competition to uncover a fortune and dark secrets about the wealthy relations they have never known."-- Provided by publisher.

Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their unmatched power? After a whirlwind race that's taken them across five continents, Amy and Dan face the most the difficult challenge yet -- a task no Cahill dared to imagine. When faced with a choice that could change the future of the world,...

"Sixteen-year-old Jo must decide whether to trust her estranged father or the grandparents who raised her but hid the truth about the way her mother died when Jo was only two"-- Provided by publisher.

Addie hopes that the road trip of a lifetime through the rolling hills of Ireland will not only bring the romance and adventure she so desperately seeks but also help fix the shattered relationship she has with her brother Ian after secrets come to the surface. When she discovers the guidebook, Ireland for the Heartbroken, will it heal her broken heart... and her relationship with her brother?

To help her best friend-turned-enemy Derek, who's possessed by a ghost, seventeen-year-old Aria must reestablish her link to the afterlife with the help of a new love to remove the lost soul from Derek's body or they could lose him forever.

The shadow of the man in black has followed fourteen-year-old Amy Cahill and her younger brother Dan on their worldwide search for 39 Clues that lead to a great power. The man has tried to kill them and he is a Madrigal, as were their parents. And now the man is ready to step out of the darkness for their final confrontation.

Ivy Sparrow and her big brother Seb discover a city beneath London where ordinary objects have magical powers.

When the Problim family home blows up, the seven siblings must go live in their grandfather's abandoned home in Lost Cove. Rumors about treasures and magic lead to shenanigans as their new neighbors becomes determined to get their hands on the secrets the children hold. Through it all, the children must band together and muster up the courage to face whatever challenge comes their way as a family.

When her mother, who disappeared 16 years before, reappears while a true crime documentary about her case is being filmed, 18-year-old Bel, not buying her mom's unbelievable story about what happened to her, must uncover the real reason Rachel Price is back from the dead.

"Sara Zarr, author of the National Book Award finalist Story of a Girl, returns with an intimate, exquisitely crafted novel of the courage it takes to see those we love for who they are."--Provided by publisher.