The Black Echo - Michael Connelly

The Black Echo is a Harry Bosch novel. This book takes detective Harry Bosch back to his Vietnam days as a tunnel rat. By coincidence Harry is called out on a dead body and that dead body turns out to be a man Harry knew from his days in the war. But Harry doesn't believe in coincidence. Throw in a beautiful FBI agent and millions in diamonds, and you have an engrossing detective story. The turns and twists in this novel make it hard to put down. Highly recommended.