In the Vegas Underworld, magic is money and henchmen wield magic. The Syndicate, one of seven Chambers controlling the balance of power in a supernatural realm, rules over this piece of the pie. When an unprecedented sinister event threatens to shatter the precarious peace, the Syndicate dispatches a lone enforcer, H, to investigate. Though his loyalty is beyond reproach, H is a wild card due to his unique ability to wield technology-based new magic—something the Chambers can't comprehend, let alone control. Welcome to the fabulous Vegas Underworld... the under underworld.

In the Vegas Underworld, magic is money and henchmen wield magic. H is a mob enforcer for the highest-ranking capo in the Vegas Underworld–a city that coexists in a parallel plane with Las Vegas and where dead casinos experience a magical rebirth. He's one of the few wielders with the natural ability to manipulate new magic, a mysterious avant-garde energy allowing him to marry techware with ancient magic. At the start of the annual magic convention in Las Vegas, a sinister mage assassinates a wielder with the potential to represent an unknown benevolent being. The killer pins the murder on the Syndicate, the governing magical body of the Vegas Underworld. The Syndicate belongs to a society of Chambers hailing from all over the world. They have kept the peace among all members through contractual obligations negotiated every 75 years during a magic convention. This uneasy alliance is threatened by the demise of the wielder. To stave off a Chamber war, H's boss sends him on a mission to clear the Syndicate's name or an all-out war will drown the Vegas Underworld in blood.