Fhtagn
fhtagn is a term from the story of Cthulhu's Ruf (English original title: Call of Cthulhu ) by HP Lovecraft, which is used symbolically for the Cthulhu myth
- for use in the short story, see Cthulhus Ruf
- for use in the Cthulhu myth, see Cthulhu myth
- for the role play system, see FHTAGN