FIRST NATION

Sedna (Inuktitut: ᓴᓐᓇ Sanna, previously Sedna or Sidne) is the goddess of the sea and marine animals in Inuit mythology, also known as the Mother of the Sea or Mistress of the Sea. The story of Sedna, which is a creation myth, describes how she came to rule over Adlivun, the Inuit underworld.I don't know what myths you are familiar with. This makes me think of the Ancient Greek myth of Hades of the underworld.