Onslaught of Murder

This story begins on April Fool's Day when Chief Inspector Edward Wilkes receives an anonymous email that warns of impending murders. The message was no prank; rather, Wilkes soon discovers that a bizarrely planned series of murders would consume the whole CID office and reach as far as cold cases within MI6. The emails did not stop, the murders did not stop, and even Wilkes' own family becomes a target. In the most demanding case yet, Wilkes and his team struggle to find a pattern that links a diverse series of crimes.