Madness is raging in every corner of the world. Poets and painters are outraged by the moonlight, a mysterious play turns hundreds of spectators into giddy idiots. It is the Unspeakable Himself who awakens, His cursed city breaking through the dimensional wall. The lost Carcosa is here on Earth!

This expansion introduces a new Immeasurable Elder, Hastur. Also includes new encounters, new myth and introduction cards. Four new detectives also arrive, with new relics, spells and unique tools to help them in their fight.

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