A woman who enjoys chess for a hobby is offered the chance to collect the pieces of a very old chess service, which when all of the pieces are reassembled, gives the players a game of unlimited power.

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.

PI Rosco Polycrates and crossword editor Belle Graham are about to tie the knot, but a nasty case of multiple murders could give them cold feet A homeless man has been found in an alley, clobbered to death. The crime seems pretty cut and dried-vagrants fighting over turf-until the Newcastle Police Department uncovers a connection to a local shelter in danger of being taken over by greedy developers. Is the dead John Doe a victim of some sinister plot?...

When five present-day teenagers known as the Kingdom Keepers travel back to 1955 for Disneyland's Opening Day, the early days of the Tower of Terror, the origin of the Overtakers, and the real power of magic unfold in an unexpected series of events that propels the Keepers into a darkness no one saw coming. Traveling back in time to 1955, the Kingdom Keepers investigate a long-buried secret that threatens Disneyland's opening day and everything Walt...

A bizarre burglary involving jewels being dissolved in super-strong acid and a note with a square on it left behind sends Inspector Van In on a strange investigation involving Latin phrases, kidnapping, and stolen, priceless art.

"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...

Overnight, Avery Grambs went from sleeping in her car to billionaire heiress. Now ensconced in a world of opulence, riddles, danger, and family secrets, Avery is on the hunt for the one person who might hold the answers to all her question--including why eccentric billionaire Tobias Hawthorne left his entire fortune to Avery, a virtual stranger, rather than to his own daughters and grandsons. Avery has a DNA test that proves she's not a Hawthorne...

Twelve-year-old Travis is invited to become a member of The Legend, Lauer Middle School's most exclusive secret society, but first he must solve seven puzzles.

2003, Colorado: Alexandra Solarin is summoned home to her family's ancestral Rocky Mountain hideaway for her mother's birthday. Thirty years ago, her parents, Cat Velis and Alexander Solarin, believed that they had scattered the pieces of the Montglane Service around the world, burying with them the secrets of the power that comes with possessing it. But Alexandra arrives to find that her mother is missing and that a series of strategically placed...