Is it the end of the line for Harry Bosch? n n When evidence links a brutal murder in 1989 to a convicted rapist named Clayton Pell, the case should be watertight. Pells DNA was found on the victim - but he was only eight years old at the time. n n This is not the only mystery Harry Bosch has to solve. A man jumped - or was pushed - from a window. The victims father is Councilman Irving, whos been intent on destroying Harrys career for years. Now Irving wants Harry to head up the investigation. n n Harry uncovers traces of two of the citys deepest secrets: a killer operating for as many as three decades without being detected, and a conspiracy that goes back into the dark history of the police department . . . n