Blood Work (Harry Bosch Universe, #8; Terry McCaleb #1)

Blood Work is a 1998 mystery thriller novel written by Michael Connelly which marks the first appearance of Terry McCaleb. The character McCaleb later returns in A Darkness More Than Night (2000). The book Blood Work was used as the basis for the 2002 movie of the same name, starring Clint Eastwood. Connelly was inspired to write the story by a friend who received an organ transplant.