The Court of the Depths

The Court of the Depths is a realm of eternal shoreline leading into an endless ocean. Here is where the mermaids and other fey seafolk reside. The Queen of the Depths is an archfey called Mami Wata.
Mami Wata is a life-giver, but also one who demands great sacrifice. She resides in her palace in the depths of her domain, lit by undersea lanterns and guarded by giant anglerfish.