Black echo / touch of ghosts (2 books)

The Black Echo is the 1992 début novel by American crime author Michael Connelly. This is the first of Connelly's Bosch series. The book won the Mystery Writers of America Edgar Award for "Best First Novel" in 1992. The death of Billy Meadows, a friend and fellow "tunnel rat" from the war, attracts Bosch's interest, especially when he determines that it may have been connected to a spectacular bank robbery using subterranean tunnels. Bosch suspects that the robbers were after more than money and he then partners with the FBI, in particular agent Eleanor Wish, in an attempt to foil their next attack. Boston private investigator Alex Rourke is looking forward to the weekend. He's heading to Vermont to visit his girlfriend, and also plans to do some checking on his latest missing person: a young man named Adam Webb who made the same journey, and never came back. But the truth about Adam Webb isn't the only secret buried in the Green Mountain woods. Hikers have gone missing, a prostitute has been murdered and something sinister is happening in the ghost-town of North Bleakwater. It soon becomes clear that in the mountains, who you trust can means the difference between life and death