Eleven-year-old Chester and his classmate Skye, tasked with a complex puzzle-solving mission, discover the key to their spy assignment is to stop a heist, but cracking the code could mean finding out things are not always what they seem.

Just after twelve-year-old Emily and her family move to San Francisco, she teams up with new friend James to follow clues in an odd book they find, hoping to figure out its secrets before the men who attacked Emily's hero, publisher Garrison Griswold, solve the mystery or come after the friends.

When Stink's parents win an aquarium sleepover, he and his two friends enjoy a scavenger hunt before trying to fall asleep while worrying about the frankensquid on the loose.

Everybody starts somewhere, and once upon a time Luigi Lemoncello was a twelve-year-old boy in a large family who dreamed of being a showman; he gets his first chance working for a famous barker at a summer carnival where a mysterious puzzle leads him and his friends on a treasure hunt.

"Mr. Quisling is definitely up to something mysterious, and Emily and James are on high alert. First, there's the coded note he drops at a book event. Then Emily and James uncover a trail of encrypted messages in books by Mark Twain hidden through Book Scavenger. What is most suspicious is that each hidden book triggers an arson"--OCLC.

"Legendary literary game-maker Garrison Griswold is back in action this time with 'Unlock the rock' . . . Griswold has partnered with the famous--and famously reclusive--mystery writer Errol Roy to plan an epic escape room challenge on Alcatraz Island. Emily and James are eager to participate, but the wave of fame they are riding from their recent book-hunting adventures makes them a target. Threatening notes, missing items, and an accident that might...

"When Brie was younger, her mama used to surprise her with treasure hunts around their island town. After she died three years ago, these became Brie's favorite memories. Now, on her twelfth birthday, her mama has another surprise: a series of letters leading Brie on one last treasure hunt. The first letter guides Brie to a special place. The next urges her to unlock a secret. And the last letter will change life as she knows it"--Provided by publisher....

During a weekend trip to Ocracoke Island, siblings Judy and Stink Moody take part in a pirate treasure-hunting game, in which various clues lead them to silver coins, or "pieces of eight," hidden across the island.

"Ellen, an autistic thirteen-year-old, navigates a new city, shifting friendships, a growing crush, and her queer and Jewish identities while on a class trip to Barcelona, Spain"--

The stress of an oil refinery being built in their backyard, threatening their families' livelihood, prompts four working-class teens to join a dangerous scavenger hunt where the reward of power could change their families' fates and save the city they love so much.