Sixkill is the last novel Parker produced before his death. Unless some other author picks up the thread, it may be the last Spencer story ever. That made reading it kind of poignant. Parker novels are full of punchy dialog, great characters, and thoughtful introspection. He will be greatly missed.
Sixkill is named after a new Parker character. Zebulon Sixkill is a Cree Indian bodyguard who Spencer befriends after thoroughly beating him. This takes place while Spencer is investigating the cause of death of a young women. Her body is found in a movie star's hotel room and Z works for the movie star. Spencer and Z manage to unravel the mystery, but with a few more dead bodies left in their wake. Classic Spencer. Very highly recommended.