There were others here, long before man in his misguided arrogance proclaimed himself master of the Earth. Due to cataclysms, predators, or even their own endless ambitions, all of these great civilizations eventually declined. Their knowledge is hidden from humanity, even though the key to our survival is hidden deep within these stories. To protect humanity from the threat of the Immeasurable Elder, brave investigators must seek out and uncover forgotten knowledge.

This expansion features a new Immeasurable Elder, as well as new mystery cards for the base game's Immeasurable Elders; there are hundreds and hundreds of new adventures and tasks, as well as so many new relics, tools and spells to defeat the Immeasurable Elders.

Only an add-on, not a stand-alone game.