House on an Island

From the introduction: In this adventure, one of the investigators runs into a bit of luck: one of his distant relatives passed away some time ago, leaving him partial ownership of a house on an island off the coast of Maine. On the minus side, the investigator must share the house with another distant relative and his family. On the darker side, the house and island have a terrible secret history, a history that will plunge the investigator into the depth of horror.