"All the world is a puzzle, and Mike Brink-a celebrated and ingenious puzzle constructor-understands its patterns like no one else. Once a promising Midwestern football star, Brink was transformed by a traumatic brain injury that caused a rare medical condition: Acquired Savant Syndrome. The injury left him with a mental superpower-he can solve puzzles, calculate equations, and see patterns in ways ordinary people can't. But his condition has also...

It was 1798 when the Morningstarr twins arrived in New York with a vision for a magnificent city: towering skyscrapers, dazzling machines, and winding train lines, all running on technology no one had ever seen before. Fifty-seven years later, the enigmatic architects disappeared, leaving behind for the people of New York the Old York Cipher--a puzzle laid into the shining city they constructed, at the end of which was promised a treasure beyond all...

Claudia Dalton, twelve, embarks on an unexpected treasure hunt that she hopes will bring her missing father home and heal whatever is wrong with her family. Told through notes, emails, audio and video transcripts, and more from Claudia's scrapbook.

Despite his overwhelming fear of interacting with people, Christopher, a mathematically-gifted, autistic fifteen-year-old boy, decides to investigate the murder of a neighbor's dog and uncovers secret information about his mother. Christopher John Francis Boone knows all the countries of the world and their capitals and every prime number up to 7,057. He relates well to animals but has no understanding of human emotions. He cannot stand to be touched....

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.