Sixty years after the Hero Gilgamesh single-handedly destroyed the Tower, it has been rebuilt as a stronghold for the evil lord Druaga and his dark minions.  The armies of Uruk have secures the first floor of The Tower, building the stronghold city of Meskia.  Every three years, through the power of the benevolent god Anu, the strength of Druaga's demonic army wanes, and Uruk's soldiers - along with adventurers from many lands, drawn by the promise of glory and rumours of great treasure - gather to continue their floor-by-floor siege of The Tower.

It is the third "Summer of Anu". Jil, a young adventurer, departs from the safety of Meskia, into the dangerous bowels of The Tower.  The quest: Druaga's lair on the top floor, where the evil lord himself stands guard over the legendary Blue Crystal Rod.