The Realm of Feror
Koila shepherded the first sea creatures toward sentience and civilization, using her power to gather the hardiest shoals toward supplication. Initially, three tribes competed for her favor – the merrow, the merfolk and the kuo-toa. Eventually, the kuo-toa became too numerous for the others, and were driven from the shoals due to their cannibalistic hunger to the deepest parts of the sea. Without a unified enemy, the merrow and merfolk turned on one another, with the merrow calling on dark powers to wield against their brethren. When Koila was made aware of their infernalism, she drove them away from the shoals.
Now, the merfolk have a tenuous peace with the land dwellers, trading the treasures below for harmony along the coast. The merrow have aligned with pirates and mercenary companies, taking what they can from both merfolk and the peoples of Feror. The kuo-toa roam anywhere they can, growing in number and creating their own gods in an effort to take back the ‘lands’ they consider truly theirs.