Someone is watching. At each abandoned crime scene there's a hidden clue: a tiny metal cog, almost invisible to the naked eye. Someone is sending Detective Sam Berger a message, someone who knows that only he will understand the cryptic trail. Someone knows.

Binding: Paperback;400 pages; Publisher: Vintage Publishing; Classification: Crime and mystery fiction; Weight: 398 g; Dimensions: 194 x 146 x 25

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