#1 international bestselling author Linwood Barclay’s novels have been praised as “compelling” (The Associated Press), “gripping” (The Wall Street Journal), and “fast-paced” (The Washington Post). Now, Barclay returns with a thrilling story in which two brothers suddenly find themselves pulled into a frightening vortex of power and murder… Thomas Kilbride is a map-obsessed schizophrenic so affected that he rarely leaves the self-imposed bastion of his bedroom. But with a computer program called Whirl360.com, he travels the world while never so much as stepping out the door. He pores over and memorizes the streets of the world. He examines every address, as well as the people who are frozen in time on his computer screen.