Hang on to your hats for a roller-coaster ride around our solar system with one of fiction's wildest characters, William F. Nolan's futuristic private eye, Sam Space. He works out of a seedy office on Mars, replete with a plug-in secretary, argues over his drinking with a grumpy hovercar, is hired by a body-switching eccentric and a three-headed female from Venus, battles a fire dragon, pops in and out of alternate universes, has his head on backwards (part of the time), is captured by mice, gets trapped by a witch in a candy forest, is reduced to a quavery old man and a squalling infant, beds a lush beauty with winking nipples, views his own corpse, chases a robot's testicle, lays a freckled egg, and is fatally shot. Among other things.
Used availability for William F Nolan's Space for Hire
July 1985 : USA Paperback
March 2010 : USA, Canada, UK Kindle edition