F. Paul Wilson has written in various areas, including SF and horror, straight and medical thrillers, fantasy, and you name it. But he's probably best-loved for Repairman Jack.
Once in a while someone comes up with a great concept, turns it into a series, and makes us happy forevermore. That is what F. Paul Wilson did when he wrote THE TOMB. In Jack, he created a character who's part noir-style detective, part Zorro, part Lawrence Block's Matt Scudder (without the bleakness) and part Block's resourceful Evan Tanner. Perhaps Wilson didn't think of Jack that way, but these comparisons might give you some idea of what Jack's like, if you've never read one of the Repairman books. And if you haven't, shame on you!
In THE TOMB we met Jack (not his real name), a loner who's an independent contractor, operating so far outside the System that he doesn't even appear on tax rolls. Specialty: fixing people's problems, off the books, for cash payments. Strange situations require strange fixes, and Jack is always willing to help an underdog beat a Goliath. THE TOMB is still one of the best blends of crime and horror ever done.
Jack, a down to earth kind of guy, faces a nightmarish, indestructible demon creature out of Hindu mythology - a whole shipload of them, in fact. The "rakoshi" have been bred and imported to settle an old blood feud, and Jack finds himself squarely in the middle as people he has come to love are either on the list or in the way. It's not giving much away to reveal that Jack survives, but once touched by the rakoshi and what they represent, he can never turn back the clock.
The next Repairman Jack novels were LEGACIES and CONSPIRACIES, both solid chapters in the life of a "freelance vigilante" who's in...