As a last effort to avoid mass destruction, the gods (Oni, with the help of Lathander and Torm) sent the Thirteen Warnings, a series of signs meant to deter the Daybreak-kings. Trees wept blood, fires raged unnaturally, and cyclones struck the gleaming Temple of the Daybreak-king. The gods also warned a few chosen mortals, reasoning that if any of them reached Istar and prevented the ritual, the world might not be beyond redemption. But the messengers failed—the Daybreak-king and his followers dismissed the warnings as the work of evil and continued on their path. As the hour of the Daybreak-king's ritual to attain godhood arrived, the gods whisked away their most devout followers and unleashed punishment on all who remained.
A mountain of fire fell from the sky, destroying Istar. The Blood Sea—a new ocean that split eastern Ansalon—consumed the empire. Coastlines shifted all over the world, sundering nations, drowning whole regions, and stranding ports miles from the sea. Though some lands escaped the worst of the destruction, none were spared divine wrath.
The gods and their blessings then faded from the world, and in time, even their names were all but forgotten.