When he left the LAPD, Bosch took a file with him: the case of a production assistant murdered four years earlier during a film-set robbery. The LAPD thinks the stolen money was used to finance a terrorist training camp. Thoughts of the original murder victim were lost in the federal zeal, and when Bosch decides to reinvestigate, he quickly falls foul of both his old colleagues and the FBI. When the investigation enables him to meet up with an old friend, shadows from his past come back to haunt him.

Terry McCaleb's enforced quiet lifestyle on the island of Catalina is a far cry from the hectic excitement of his former role as an FBI profiler. However when small-time criminal Edward Gunn is found dead, McCaleb becomes embroiled in a disturbing and complex case leading him to cross the path of Harry Bosch. This infamous detective has always teetered on the brink of darkness in order to get inside the head of the killer. Is it possible he has stepped across that finely drawn line and embraced darkness?

It starts with the body of a Hollywood producer in the trunk of a Rolls-Royce, shot twice in the head at close range - what looks like "trunk music", a Mafia hit. But the LAPD's organized crime unit is curiously uninterested, and when Harry follows a trail of gambling debts to Las Vegas, the case suddenly becomes more complex - and much more personal.

Harry Bosch finds himself yet again in charge of a case that no one else will touch. This time his job is to nail the killer of hot shot black lawyer Howard Elias. Elias has been found murdered on the eve of going to court on behalf of Michael Harris, a man the LAPD believes guilty of the rape and murder of a twelve-year-old girl. Elias had let it be known that the aim of his civil case was not only to reveal the real killer but to target and bring down the racist cops who beat up his client during a violent interrogation.

Harry is back, assigned to the LAPD's Open-Unsolved Unit with his former cop ally and partner, Kizmin Rider. These detectives are the Closers. They are thrown into a politically sensitive and dangerous case when a white supremacist is connected to the 1988 murder of a mixed-race girl. The police department has changed, but one thing hasn't--Harry's nemesis, Irving. The former deputy chief has been pushed from power and given a virtually meaningless new role. Full of vengeance, Irving calls Harry a "retread".

Harry attacked his commanding officer and is suspended indefinitely, pending a psychiatric evaluation. At first he resists the LAPD shrink, but finally recognizes that something is troubling him and has for a long time. In 1961, when Harry was 12, his mother, a prostitute, was brutally murdered with no one ever accused of the crime.

When a physicist is murdered in LA it seems the killer has no fear of publicity, leaving the body on The Mulholland overlook, a site with a stunning view over the city. And when it's discovered that the victim turned over a quantity of a lethal chemical to his killer before he died, Harry knows he has more than just a single death to worry about. Alongside the forces of Homeland Security, Harry realises he must solve the murder or face unimaginable consequences.

The shooting of a Chinese liquor store owner in LA brings Harry Bosch back to the Rodney King riots and the moment a stranger gave a young cop sanctuary. Now the debt must be repaid, and Harry soon discovers the old man's death was no ordinary holdup.

The Dollmaker was the name of the serial killer who had stalked Los Angeles ruthlessly, leaving grisly calling cards on the faces of his victims. Now, with a single faultless shot, Harry Bosch thinks he has ended the city's nightmare.

Harry Bosch is facing the end of the line. He's been put on the DROP - Deferred Retirement Option Plan - and given three years before his retirement is enforced. Seeing the end of the mission coming, he's anxious for cases. He doesn't have to wait long. First a cold case gets a DNA hit for a rape and murder which points the finger at a 29-year-old convicted rapist who was only eight at the time of the murder.

Working on the case, LAPD detective Harry Bosch is reminded of the primal police rule he learned long ago: Don't look for the facts, but the glue that holds them together. Soon Harry's making some very dangerous connections, starting with a dead cop and leading to a bloody string of murders that wind from Hollywood Boulevard to the back alleys south of the border.

In the LAPD's Open-Unsolved Unit, not many murder victims die almost a decade after the crime. So when a man succumbs to complications from being shot by a stray bullet nine years earlier, Bosch catches a case in which the body is still fresh, but any other evidence is virtually nonexistent. Now Bosch and his new partner, rookie Detective Lucia Soto, are tasked with solving what turns out to be a highly charged, politically sensitive case.

An old case from his LAPD past threatens Bosch's reputation in a gripping new thriller. Harry Bosch is back as a volunteer working cold cases for the San Fernando police and is called out to a local drug store where a young pharmacist has been murdered. Bosch and the town's three-person detective squad sift through the clues, which lead into the dangerous big-business world of prescription drug abuse. Meanwhile, an old case from Bosch's LAPD days comes back to haunt him.

Six months ago Harry Bosch left the LAPD before they could fire him and then hired maverick defense attorney Mickey Haller to sue the department for forcing him out. Although it wasn't the way he wanted to go, Harry has to admit that being out of the game has its benefits. Until Mickey asks him to help on one of his cases, and suddenly Harry is back where he belongs, right in the centre of a particularly puzzling murder mystery.

Back when Harry Bosch was just a rookie homicide detective, he had an inspiring mentor who taught him to take the work personally and light the fire of relentlessness for every case. Now that mentor, J.J. Thompson, is dead, but after his funeral his widow hands Bosch a murder book that Thompson took with him when he left the LAPD 20 years before - the unsolved killing of a troubled young man in an alley used for drug deals.