Summary: Carnacki, The Ghost Finder The Gateway of the Monster. Carnacki is summoned to investigate a spirit that disrupts an ancient mansion every night at the site of a grisly murder generations ago. Episode 338, Carnacki Ghost Finder, 1 (download or listen via this link) Book Information Story rating: G for occult detection, faked ghosts, real ghosts, and other things that go bump in the night. This story is in the public domain.