"Judith Potts is seventy-seven years old and blissfully happy. She lives on her own in a faded mansion just outside Marlow, there's no man in her life to tell her what to do or how much whisky to drink, and to keep herself busy she sets crosswords for The Times newspaper. One evening, while out swimming in the Thames, Judith witnesses a brutal murder. The local police don't believe her story, so she decides to investigate for herself, and is soon...

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.

"Grayson Hawthorne was raised as the heir apparent to his billionaire grandfather, taught from the cradle to put family first. Now the great Tobias Hawthorne is dead and his family disinherited, but some lessons linger. When Grayson's half-sisters find themselves in trouble, he swoops in to do what he does best: take care of the problem--efficiently, effectively, mercilessly. And without getting bogged down in emotional entanglements. Jameson Hawthorne...

"A puzzling new Christmas mystery from USA Today bestselling author Alexandra Benedict! Rest. In. Pieces. On 1st of December, renowned puzzle setter, loner, and Christmas curmudgeon Edie O'Sullivan finds a hand-delivered present on her doorstep. Unwrapping it, she finds a jigsaw box and, inside, six jigsaw pieces. When fitted together, the pieces show part of a crime scene - blood-spattered black and white tiles and part of an outlined body. Included...

When an elderly boarder at a Bakerhaven bed-and-breakfast drops dead during afternoon tea, there's nothing particularly suspicious about it—except for the Sudoku in his jacket pocket.

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.

"The annual Christmas Game is afoot at Endgame House, the Armitages' grand family home. This year's prize is to die for--deeds to the house itself--but Lily Armitage has no intention of returning. She hasn't been back to Endgame since her mother died twenty-one years ago, and she has no intention of claiming the house that haunts her dreams. Until, that is, she receives a letter from her aunt promising that the game's riddles will give her the keys...

"Sherlock Holmes must participate in a cunning Christmas challenge set by Irene Adler with the theme of 'theft without theft,' while helping his new client, a Norwegian arctic explorer, discover who has been threatening him--a case that could be related to Adler's great game"--

"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...

Elizabeth, eleven, spends Christmas break at Winterhouse hotel under strange circumstances, where she discovers that she has magic, and her love of puzzles helps her solve a mystery.