Sandy Petersen’s Cthulhu Mythos: For 5E – The Big Sleep Act 4

Tsathoggua’s rampage continues unchecked. Your heroes must delve deep into the caverns whence the Great Old One emerged. Here, you encounter ancient subterranean civilizations and primordial beasts. As you make your way to the lightless realm of N’Kai, Tsathoggua’s origin, you find terror, abomination, and stygian vaults. But somewhere in this nightmare realm is the secret behind the Sleeper’s power. Only you and your heroes have the skills to obtain it, and the knowledge to use it. But Tsathoggua is also aware and alert – will you be ready for the final showdown with the titan itself and its army of slithering monsters?

Lullaby is the fourth and final Act of the Big Sleep Saga from the brain of Sandy Petersen! Get them all for a complete campaign in which you can explore all the possibilities of the Sleeper – the alien monster-god Tsathoggua – and his menace.

Sandy Petersen, the author of the Call of Cthulhu Role-playing game published by Chaosium, changes the tabletop world once again with Sandy Petersen’s Cthulhu Mythos – a complete sourcebook for all things Lovecraftian for 5th edition fantasy. The Big Sleep is the fourth campaign saga for Sandy Petersen’s Cthulhu Mythos for 5th edition.