A brilliant brainteaser of a thriller with a high concept plot and memorable cast of characters, in the tradition of Harlan Coben and Linwood Barclay. 'One of the finest thrillers I've read in years...In a genre frequently and sadly known for delivering more of the same old familiar stuff }Think Of A Number{ stands out as original and exciting' John Katzenbac It begins with a letter. The letter contains a request - think of a number - and a sealed envelope. Inside the envelope is that number. When Dave Gurney, retired NYPD homicide detective, is contacted by an old college acquaintance about startling letters he's been receiving. How else was he able to predict his victim's thoughts, even his actions?