Arkham Case Files: Deep Morgue

From publisher blurb: In Newburyport, Massachusetts, police have barricaded off a county morgue with rumors that a monster is loose in the morgue. Some believe in the monster, some do not. They have asked you to go in and investigate, do you dare? In this one shot adventure for Call of Cthulhu, investigators go into the morgue to investigate rumors of monsters in the morgue. No one knows for sure what is in there, but they are afraid to go in. Take your investigators on a frightening journey in this one shot adventure.