The notorious lich Vecna is weaving a ritual to eliminate good, obliterate the gods, and subjugate all worlds. To stop Vecna before he remakes the universe, the heroes work with three of the multiverse's most famous archmages, travel to far-flung locales, and rebuild the legendary Rod of Seven Parts.

Vecna: Eve of Ruin is a high-stakes Dungeons & Dragons adventure in which the fate of the multiverse hangs in the balance. The heroes begin in the Forgotten Realms and travel to Planescape, Spelljammer, Eberron, Ravenloft, Dragonlance, and Greyhawk as they race to save existence from obliteration. A Dungeons & Dragons adventure for characters of levels 10–20.