Michael Connelly brings together Terry McCaleb and Harry Bosch in A Darkness More Than Night and it works really well.
McCaleb, now retired on a small island with his wife and family, still finds it difficult to leave his FBI profilign days behind and becomes embroiled in a murder case in which Detective Harry Bosch of the LAPD quickly becomes a prime suspect. Hard though this is to believe for McCaleb, the evidence begins to mount up, and McCaleb and Sheriff's Deputy Jaye Winston (another returning character) begin to close in on Bosch.
Bosch, meanwhile, is the chief witness in a high profile murder case against a top Hollywood director. As McCaleb begins to intrude into this, Bosch has to juggle trying to prove his innocence with ensuring that the accused in his own case is put away.
Connelly carries off the coming together of his two chief characters well, making their mutual respect obvious whilst keeping them detached enough that their is friction there. As well as McCaleb and Bosch there is also a cameo for Jack McEvoy, a reporter who was the central character in Connelly's The Poet (a brilliant serial killer novel, by the way).
So, A Darkness More Than Night is an intriguing and beguiling read that uses the characters well to draw the reader in. However, it suffers from two serious problems that cost it the fifth star: the circumstances in which Bosch becomes a suspect are horribly contrived and unbelievable, and the twists are not as huge as you would hope. It can be fairly predictable, but nonetheless entertaining, stuff.
Naturally, if you love Connelly's work, this is a must.