Vecna: Eve of Ruin is a Dungeons & Dragons (D&D) 5e campaign book for characters level 10–20 that features the legendary arch-lich Vecna. In the story, Vecna tries to complete a dark ritual that will destroy the gods and make all worlds subservient to him. To stop Vecna, the heroes must work with three of the multiverse's most famous archmages, rebuild the Rod of Seven Parts, and travel to distant locations.