A mysterious event that caused the downfall of countless civilizations across Urtholm that took place approximately 2,000 years ago. Whatever the catalyst for the apocalypse, the Ultimydeon began to appear and purge the world of sentient life. A, yet unexplained, phenomenon seemed to erase past knowledge from the minds of the survivors; retaining understand of science and magic with historical information lost completely. Those that survived began to rebuild, only to find that large gatherings of beings would result in the Ultimydeon returning.