While visiting a remote dig site in Iraq, the Investigators find themselves isolated by a flash flood and confronted with a murderous plot and an ancient curse. To survive, they must unravel the secret of the ancient burial site and the creatures that dwell in the darkness beneath it. 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.