Think Of A Number (Dave Gurney, No.1) A Novel.

The first book in the Dave Gurney series, Think of a Number is a heart-pounding game of cat and mouse that grows relentlessly darker and more frightening as its pace accelerates Threatening letters arrive in the mail over a period of weeks, ending with a simple declaration: "Think of any number...picture it...now see how well I know your secrets." Those who comply find that the letter writer has predicted their random choice exactly. But whe...