Kate McDonald is finally settling into her job as director of the Avondale Puzzle Museum, and getting used to life again in her hometown of Granville, New Hampshire. Although her aunt is still trying to fix her up with every eligible man in town, Kate is content to continue her "friendship" with Police Chief Brandon Mitchell. And she continues to mentor her young friend, Harry, the brilliant teen she hopes will follow in her footsteps at her beloved museum. But when rumors of a serial killer begin swirling, and Katie begins to receive eerie and complicated sudoku puzzle clues to a string of recent murders, well...the small town life doesn't seem quite so dull after all.

When a mysterious truck tries to run over Kate and hits Brandon, sending him to the hospital with numerous injuries, it falls to Kate to try and solve the mystery before someone else is injured or killed. Add to this a more-than- enthusiastic newspaper owner and his photographer sidekick, and a less-than-stellar former partner of Brandon's, who seems intent on claiming the out-of-commission chief's duties, Kate has her hands full indeed.

In SERIAL KILLER SUDOKU, the third book of the puzzle- based series, author Shelly Freydont offers a lively, fast paced mystery full of twists and turns, numbers and clues. Her main character, Kate McDonald, is a champion Sudoku (a number-based puzzle) solver is feisty and smart and eager to solve the latest puzzle or mystery that comes her way. Mystery lovers will enjoy this series, as well as puzzle admirers. Each chapter features a new Sudoku puzzle (and the answers are provided in the back!).