The Twenty-Three - Linwood Barclay

It's the Saturday morning of Memorial Day weekend and the small town of Promise Falls, New York, finds itself in the midst of a full-blown catastrophe. Humdreds of people are going to the hospital with flu-like symptoms--and dozens have died. A college student has been murdered. The motive for harming the people of Promise Falls points to the number 23-- and working out why will bring Duckworth closer to death than he's ever been before.