"Twelve-year-old Sarah Greene wants nothing more from her seventh-grade year than to beat the hardest escape room left in her town with her best friends, West, and Hannah. But when a foreclosure notice shows up on Sarah's front door, everything changes. Since her father became ill two years ago, things have been bad, but not lose your house bad . . . until now. Sarah feels helpless until the day Hannah mentions a treasure rumored to be hidden in...

On her eighteenth birthday, Cleo is given clues for a mysterious scavenger hunt that sends her around Columbus, Ohio, and through her past relationship with Declan, who drowned on a group rafting trip the previous year.

Told in the alternating voices of Dash and Lily, two sixteen-year-olds carry on a wintry scavenger hunt at Christmas-time in New York, neither knowing quite what--or who--they will find.

When an unexplained blackout engulfs Stonetown, Benedict Society members Reynie, Kate, Sticky, and Constance follow clues on an adventure that threatens to separate them from their families, friends, and even one another.

Soon after receiving an anonymous message stating that she has twenty-four hours to play a game by the sender's rules or he will kill her sister, sixteen-year-old Crystal Donovan realizes that cooperating will destroy her friends' lives and she must figure out a way to beat the kidnapper at his own game before she loses everything.

During a road trip, thirteen-year-old Olivia, a budding photographer, tries to recreate a Treasure Hunt she once shared with her sixteen-year-old sister, Ruth, while watching for signs that Ruth's depression is back.

Tonight is the Big Night sleepover at Dunwiddle Magic School, when all the fifth graders stay overnight at school and participate in the scavenger hunt, except Nory's friend Elliott is attending a concert at rival Sage Academy where he plans to attend after the winter break--but if Nory can convince her fellow upside-down magic friends to take the hunt seriously, cooperate, and win, than maybe she can convince Elliott to stay at Dunwiddle.

Bookseller Delaney Nichols receives a mysterious cloaked visitor who presents to her an even more perplexing note: an invitation to an exclusive treasure hunt hosted by eccentric socialite Shelaigh O'Connor. Delaney is intrigued by the grand prize at the end of the treasure hunt: a highly valuable first edition copy of The Strange Case of Dr. Jekyll and Mr. Hyde, the contents of Shelaigh's vast library, and an unspecified sum of cash. Delaney is also...

Taking a turn caring for the class pet hamster, Marion is devastated when the hamster goes missing and she receives an anonymous letter in her locker with clues leading to a mysterious scavenger hunt.

As they continue their search for the 39 Clues in China, fourteen-year-old Amy is faced with a terrible dilemma when her eleven-year-old brother Dan suddenly disappears--keep on searching for the next Clue or try to find her brother.