Innsmouth was a corrupted and fallen town, consumed by its greed and controlled by the Esoteric Order of Dagon. In 1928, the Federal Government destroyed Innsmouth and the nearby Devil Reef based on claims made by a man who had visited the town. Four years after the mysterious disappearance of Robert Olmstead, the man who sent the FBI to Innsmouth, his closest friend has discovered new evidence into the reality of what Innsmouth truly was: He has found the Journal of Captain Obed Marsh. The journal paints an intense scene of a vibrant town and how one man's good intentions can pave the way to Hell itself. Or in this case...to Y'ha-nthlei. What can test a man so intensely as to break him from his righteous path? Only the journal can shed light on that.