No one goes to Illmarsh. An ugly town, unfriendly to strangers and squatting amid the nastiest stretch of swamp in Ustalav, Illmarsh seems to breed rumor and madness, and those who speak of it always whisper of strange disappearances, misshapen shadows, and sacrifices to things terrible and forgotten. But when the trail of the death cultists known as the Whispering Way leads to Illmarsh, it's up to the PCs to learn the secrets of the sickly village. There they'll find a desperate people, caught in a war between beings from beneath the seas and invaders from the darkest corners of the cosmos. Can the heroes save Illmarsh from its tradition of terror? Or will they be the next victims of the horror from beyond the stars?This volume of Pathfinder Adventure Path continues the Carrion Crown Adventure Path and includes: "Wake of the Watcher," a Pathfinder RPG adventure for 9th-level characters, by Greg A. Vaughan Blasphemous secrets of the foul faiths known collectively as the Old Cults and sanity-shattering gods such as Azathoth, Nyarlathotep, and Cthulhu, by James Jacobs A giant bestiary filled with eight classic monsters inspired by the writing of H. P. Lovecraft and the tales of the Cthulhu Mythos, by James Jacobs and Greg A. Vaughan Laurel Cylphra's discovery that the dead aren't the only dangers in Ardis in a new entry into the Pathfinder's Journal, by F. Wesley Schneider