SATAN'S SALESMAN is a novel by Matthew Davenport set in his Broken Nights universe while also functioning as a stand-alone horror novel. The premise of the novel is a simple but effective variant on the old Faustian pact. In exchange for your immortal soul, you can have anything you desire as long as it is within the "value" of your soul (measured in points). This kind of industrialized post-Wallstreet take on the powers of Satan. In this case, it reminds me very much of the Al Pacino movie THE DEVIL'S ADVOCATE which was very different from its novel.
I'm a big fan of Matthew Davenport's Cthulhu Mythos novels. I really enjoyed THE TRIAL OF OBED MARSH and thought THE STATEMENT OF ANDREW DORAN was a lot of fun. However, I was interested in where the story could go after the events of the first novel. It's not often an author combines Indiana Jones, the Cthulhu Mythos, and Titus Crow. Where do you go from there? Well, nicely, the answer is Antarctica to prevent the Nazis and some nasty cultists from raising an army of shoggoths to destroy everything.
Superhero fiction is a niche genre in a niche genre. Superheroes thrive in comic books, video games, and movies but aren't so very popular in prose fiction. Perhaps because it's such a visual medium but I think it's more there's just never been an iconic example of the genre. Despite this, there's some truly great examples of superhero fiction which I've been proud to review. Things like Wearing the Cape, Origins of a D-List Supervillain, Soon I Will Be Invincible, and Villains Rule.