The Ultimate Guide to the Cthulhu Mythos.
The most comprehensive guide to the Cthulhu Mythos ever written for 5e fantasy. Written by the father of Cthulhu in gaming Sandy Petersen, author of the groundbeaking Call of Cthulhu roleplaying game.
More than 100 Mythos Monster stat blocks, and 26 Great Old Ones and Outer Gods included. Plus, four new playable races, new spells, an entirely new magic ruleset, new items and artifacts, rules for insanity, detailed descriptions of Mythos Cults and MORE!
Beware. Your very sanity is in peril.