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.

"In the year 2044, reality is an ugly place. The only time teenage Wade Watts really feels alive is when he's jacked into the virtual utopia known as the Oasis. Wade's devoted his life to studying the puzzles hidden within this world's digital confines -- puzzles that are based on their creator's obsession with the pop culture of decades past and that promise massive power and fortune to whoever can unlock them. But when Wade stumbles upon the first...

"A 1980s cultural assessment of the fantastical future of online behavior continues the story that began in the internationally best-selling futuristic novel, Ready Player One, that inspired a blockbuster Steven Spielberg film"-- Days after winning OASIS founder James Halliday’s contest, Wade Watts makes a discovery that changes everything. Hidden within Halliday’s vaults, waiting for his heir to find, lies a technological advancement that will...

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.

Orphan Elizabeth Somers's malevolent aunt and uncle ship her off to the ominous Winterhouse Hotel, owned by the peculiar Norbridge Falls. Upon arrival, Elizabeth quickly discovers that Winterhouse has many charms-most notably its massive library. It's not long before she locates a magical book of puzzles that will unlock a mystery involving Norbridge and his sinister family. But the deeper she delves into the hotel's secrets, the more Elizabeth starts...

Back at the Winterhouse hotel for another holiday season, Elizabeth and Freddy, who love puzzles, dig deeper into the mystery surrounding a hotel guest who left behind odd artifacts, including a magical book that evil Gracella Winters once attempted to use to gain destructive power over the entire Falls lineage.

Catholic-schooled seventh-graders Sophie, Margaret, Rebecca, and Leigh Ann help an elderly neighbor solve a puzzle her father left for her estranged daughter twenty years ago.

Tate loves to draw everything from cats to clowns but ignores his dog Pup, who runs away to join the circus.

The simple text asks the reader a series of questions about the characters on each page, and the child must seek out the visual clues to answer.

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.