Dogged Detroit detective "Fang" Mulheisen is on the hunt for an old nemesis in this "superb" entry in the hard-hitting mystery series (Booklist).   After waging a personal war of vengeance against the Detroit mob for killing her father, Helen Sedlacek drove off into the sunset with a truckload of cash and her wily hit-man boyfriend, Joe Service. So when Detective Sergeant Mulheisen hears that a man fitting Joe's description is in a hospital in Butte, Montana--shot in the face and comatose--he rushes to investigate.   While Helen is nowhere to be found, a man hired to kill Joe turns up dead in a ditch nearby. Worse still, Mulheisen learns that an even more vicious female killer is in town, looking to finish Joe off.   Now, in a strange land where the air is clean and the people are friendly, Mulheisen has to locate the missing mafia princess while trying to keep killer Joe in breathing condition for trial--not to mention keeping himself out of the cross fire between the police, the mob, and a lot of local citizens with a lot of guns . . .    Featuring a tough, witty hero who is "an unmitigated delight on every level," this is a lightning-paced police thriller that is sure to keep you on edge till the last shot is fired (Booklist).