A 1-4 player cooperative tabletop adventure set during Tamriel's Second Era – specifically during the events of the Planemeld, as the Order of the Black Worm plots to secure the Amulet of Kings. As the dark cult schemes, however, one of its members is planning an even darker betrayal, one that will tie Tamriel in with Oblivion forever. Adventurers work to uncover her machinations and stop her plot amid a bevy of endlessly replayable content.