The Protagonists are tasked with tracking down and recovering items stolen in a break-in at the home of a wealthy art collector. In particular, a priceless ancient Mesopotamian artefact. Following the trail brings the Protagonists face-to-face with a sanity-crunching secret. A mad cult worshipping the terrible god who was, is and always will be. A blasphemous being that requires a sacrifice of flesh! This role-playing adventure is designed to work in almost any Cthulhu Eternal campaign set in the Roaring Twenties. It contains all maps, non-player characters and handouts needed to play.