In the pulsing heart of Vegas, a deadly game is afoot...

Las Vegas reels from a string of grisly murders, each victim ripped apart with supernatural savagery. Colin Slate, a sharp-witted forensic analyst from the clandestine Brethren group, suspects a sinister force prowling the shadows. Meanwhile, Toni Pemberton, a tenacious med student, delves into the mysterious death of her friend and uncovers an ancient power lurking within her - an element waiting to be unleashed by the touch of her destined partner, Colin.

Amidst the neon glow and high-stakes glamour, suspects abound: an enigmatic archaeologist entwined with Rome's dark legacy, a clandestine ringmaster orchestrating otherworldly battles, and a power-hungry senator steeped in occult secrets. As the puzzle pieces scatter in all directions, Colin and Toni embark on a perilous odyssey to unmask the true culprit. But they don't realize that their quarry isn't just any predator – it's Caligula reborn, a deranged werewolf emperor freed by an accursed excavation.

To triumph over this ancient malevolence, Colin and Toni must embrace their fated bond and merge their unique gifts in an epic showdown beneath the dazzling facades of Vegas's casinos. Beneath the glitz lies a labyrinth of dark truths waiting to be unearthed as they confront Caligula under the chilling radiance of the full moon.

Get ready for a spellbinding tale where romance intertwines with the supernatural, secrets lurk behind every corner, and the fate of Vegas hangs in the balance.