Certainly not as interesting as Lawrence Block’s Keller, Quarry is an adequate substitute if you are suffering from assassin-story deprivation. I’ve read all the Kellers and now all the Quarrys. They are both enjoyable, but Keller is a much more interesting and well-developed character.
This time Quarry discovers that a second hit team has been assigned to hit the same target, a serious breach of etiquette. The target is a “future” Martin Luther King. Jr. prospect and soon Quarry is up to his pubic hairs in attractive women and KKK sheets.
Fast, enjoyable read.