During the winter of 1927-28 officials of the Federal government made a strange and secret investigation of certain conditions in the ancient Massachusetts seaport of Innsmouth. The public first learned of it in February, when a vast series of raids and arrests occurred, followed by the deliberate burning and dynamiting - under suitable precautions - of an enormous number of crumbling, worm-eaten, and supposedly empty houses along the abandoned waterfront. Uninquiring souls let this occurrence pass as one of the major clashes in a spasmodic war on liquor.

Keener news-followers, however, wondered at the prodigious number of arrests, the abnormally large force of men used in making them, and the secrecy surrounding the disposal of the prisoners. No trials, or even definite charges were reported; nor were any of the captives seen thereafter in the regular gaols of the nation. There were vague statements about disease and concentration camps, and later about dispersal in various naval and military prisons, but nothing positive ever developed. Innsmouth itself was left almost depopulated, and it is even now only beginning to show signs of a sluggishly revived existence.
The Shadow Over Innsmouth - H.P. Lovecraft

Innsmouth Horror introduces several new game concepts to the Arkham Horror board game. Among these are the Personal Stories, a new way for each investigator to contribute. These will provide a bit more of the back story for each investigator, including the 16 new investigators found in the Innsmouth Expansion. Another new feature is the Innsmouth Look deck. These cards represent the dangers inherent in staying in the town of Innsmouth any longer than necessary, and can spell the end for an unwary investigator. Stay tuned, as more secrets escape the town of Innsmouth...