Meet Chesney Arnstruther. Once a mild-mannered insurance actuary, now a full-time crime-fighting superhero, it's all he can do to kick bad-guy ass while at the same time holding down a steady relationship with the gorgeous Melda. Something is going on.
Meet Xaphan, wise-cracking demon and the source of (almost) all of Chesney's powers. He's been asked by his infernal master to give Chesney whatever he needs... but surely stopping bad guys is not in Hell's plan? Something is definitely going on.
Meet Arthur Wrigley, a modest yet charming older gentleman whose nasty little hobby is fleecing innocent widows. Meet Simon Magus, ancient mystic and magician from Biblical times now very much enamoured of Vegas, baby. And pray you never meet the Chikkichikk, a proud and ancient race of, well, warrior dinosaurs, from the universe that God made then rejected before He started monkeying around with this one.
Whatever the hell is going on, this is definitely the third book in the wondrous To Hell & Back series.