John Verdon is a former Manhattan advertising executive who lives with his wife in the mountains of upstate New York. His first three Dave Gurney novels, Think of a Number, Shut Your Eyes Tight, and Let the Devil Sleep, are all international bestsellers.
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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, endin... SEE MORE