"Who will save existence? The evil lich-god Vecna has unearthed secrets he can use to unravel and remake the multiverse. Stopping Vecna will require working with three of the multiverse's most famous archmages, traveling to far-flung locales, and building 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."--Back cover.