Professor P.T. Avondale is found murdered at his desk with a half-finished Sudoku puzzle in front of him, and Katie McDonald, who takes over as the curator of the professor's puzzle museum, uncovers some surprising secrets in the museum's collection that may lead to the killer.

Omar Yussef has taught history to the Muslim and Christian children of Bethlehem for years while avoiding the violence plaguing the region, but when one of his prize students is arrested, Omar is thrown into the conflict and risks his life to do what is right.

Stonewall "Stoney" Jackson Calhoun, a fishing guide on Maine's Casco Bay who lost his memory seven years ago in a lightning strike, stumbles upon two grisly corpses in the course of a week--one a client, deposited on his front porch--and suspects they may have something to do with his lost past.

Devon Brady, a dedicated veterinarian working in a makeshift hospital on a canine search and rescue mission, encounters Jude Marrock and his wounded black lab, Ned; Jude gets Devon involved in a deadly game with innocent lives at stake.

"A three-hour drive from Washington, D.C., two clandestine institutions face each other across a heavily guarded river. One is the world's most unusual laboratory, whose goals and funding are a mystery. The other is an elite CIA training camp shrouded in secrecy. Now a man and a woman are about to run a gauntlet between these two puzzle factories, straight into a furious struggle to exploit a potentially world-shattering discovery-and keep some other...

Three editors conspire to devise a plan of their own about European history. As they feed all the information into their computer, they think it is a terrific joke--until people begin to mysteriously disappear.

Sydney Chapin returns to her Washington, D.C., hometown after the brutal murder of her sister, and is drawn back into the recesses of her powerful and wealthy family, whose circumstances she risks in her determination to help authorities solve the crime.

Seattle police sketch artist Maggie Barnes tries to hide the secret behind her rare talent, but when a madman begins abducting women and leaving them for dead, Maggie's secret, and her own dark connection to the madman, may be revealed.

Eve McNabb learns some shocking secrets about her late mother's life, including the fact that her father may still be alive, and sets out to uncover the truth, even though someone is willing to go to any lengths to keep Eve in the dark.

Jane Bunker gives up her career as a homicide detective to move to Green Haven, Maine, where she works as a marine insurance investigator and enjoys a more peaceful life, but when a dead body washes up on shore, Jane is pulled into another murder investigation that proves more dangerous than she imagined.