Thi is killed. The assassination takes place after the first god's slow decline. The forgotten plane Saefi, is able to send minions to find the first god, now living on Rhina, and end the god's long life.
Shortened to Calamity, the second calamity is the second major planar event of Rhina. The first of course being the Saefi War. Calamity began with the death of Solsyn, spurring natural disasters across Rhina. Alongside the natural destruction, some empires saw their chance to increase power.