The History of Pandemonium is a four-part tome found in Act V of Diablo III. Written by Itherael, it is found in the Battlefields of Eternity in a pile of Ancient Angelic Scrolls.

They read as they follow:

  1. "Pandemonium is the alpha and the omega of the Eternal Conflict. It lies at the center of all things, linking between the realms of Heaven and Hell. Long ago, when the angels were young, the aspect of Wisdom found the Eye of Anu here. He named it the Worldstone and all of Heaven swore to protect it."
  2. "Pandemonium was destined to be our battlefield. It was formed in the chaos of the last struggle between the diamond warrior Anu and the Dragon, Tathamet. Now, eons of war have scarred every patch of ground. The cycle of victory and defeat is the foundation of our existence, and the essence of the Eternal Conflict."
  3. "As war raged through Pandemonium, the Aspect of Justice called for a fortress to be raised around the Worldstone. We built a shining citadel, but in time, it fell to the demons. It has since changed hands countless times, becoming a patchwork of angelic and demonic expression.