When a Connecticut teenager inherits vast wealth and an eccentric estate from the richest man in Texas, she must also live with his surviving family and solve a series of puzzles to discover how she earned her inheritance.

Rumors spread that Tobias Hawthorne's lost son may still be alive, casting doubt on seventeen-year-old Avery's inheritance and changing the rules of the game.

Days after winning control of OASIS, the immersive virtual reality environment in which most of humanity chooses to live, Wade Watts discovers a world-changing technological advancement and draws the attention of a merciless new rival.

The reader follows Waldo as he hikes around the world and must try to find him in the illustrations of some of the crowded places he visits.

Ten-year-old Leo's future and the fate of the extraordinary Whippet Hotel, where his father is the maintenance man, are at stake when a series of cryptic boxes leads Leo to hidden floors, strange puzzles, and unexpected alliances.

"Celebrating thirty years of "Where's Waldo?", this exclusive anniversary edition showcases Waldo's most amazing adventures. Journey with him as he revisits twelve terrific destinations, each one with a brand-new game and more searches. Wow! HAVE YOU FOUND WALDO YET?" --back cover.

Twelve-year-old Gil Goodson competes against thousands of other children at extraordinary puzzles, stunts, and more in hopes of a fresh start for his family, which has been ostracized since his father was falsely accused of embezzling from Golly Toy and Game Company.

Join Mrs. Jewls's class and try solving over fifty math puzzles and brainteasers.

When winter sidewalks seem to have been mysteriously shoveled, a child wonders if snowmen are magic and have nighttime jobs while the people sleep. Includes hidden pictures.

In an alternate history of New York, three kids try to solve a modern-world puzzle and complete a treasure hunt laid into the streets and buildings of the city.