Blackwater Hollow is a quiet town with a terrifying past… and a darkness that has awakened again. A series of gruesome deaths defy science: no wounds, no struggle—only fear-twisted faces and lungs filled with soil. When the Vatican recognises the ancient sigil carved into one victim, they dispatch Dr Adrian Cole, a specialist in occult psychology. But this case is far from ordinary. Something old, hungry, and intelligent is stalking the town. Adrian is joined by: Nora Sterling, an archivist whose family is tied to a forbidden Vatican cult. Caleb Rhodes, a former detective haunted by what he once saw in the dark. Tessa Ward, a medium whose visions bring her dangerously close to possession. Together, they uncover the truth: an excommunicated sect once tried to control a demon—Umbrosus, The Shadowed One—and failed. Now, the demon's power is returning, feeding on fear, manipulating time, and rising from the remnants of a ritual the Church buried long ago. As reality warps and the town slips toward collapse, the investigators must navigate Vatican conspiracies, ancestral secrets, and their own inner darkness. For Umbrosus thrives on despair… and it knows exactly how to break each of them. Ancient evil. Vatican secrets. A town slipping into shadow. The battle for Blackwater Hollow has begun,