Fang Rock was a craggy island situated off of the southern coast of England. (TV: Horror of Fang Rock) Located close to major shipping lanes, it was the site of Fang Rock Lighthouse. (PROSE: The Secret Lives of Monsters)
In the 1900s, a Rutan ship landed underwater nearby and a scout emerged. It killed the lighthouse keeper, Ben Travers. This was suspected by Reuben Whormby, another keeper, to be the work of the beast. A fog, created by the Rutan, covered the island. The Fourth Doctor and Leela found themselves on Fang Rock while trying to get to Brighton. They visited the lighthouse.
Henry Palmerdale's steam yacht crashed due to the fog and the technical failure of the lighthouse. Palmerdale, Harker, James Skinsale and Adelaide Lessage survived and were taken in by the lighthouse keepers. They were all killed by the Rutan, as were Reuben and Vince Hawkins.