Random Creature Feature: A Selkie is creature from mythology who can transform from seal to human, and is most widely associated with tragic tales.
A selkie can choose to transform into a human form, and in many tales, upon seeing this form, a human falls in love with them. In one tale, the human hides the selkies skin so she can not transform, and they live together as a good couple until the day where she finds her skin and goes back to the sea, taking all the kids they had with her. The husband, broken hearted, dies alone.
“And it is told of Maglor that he could not endure the pain with which the Silmaril tormented him; and he cast it at last into the Sea, and thereafter he wandered ever upon the shores, singing in pain and regret beside the waves. For Maglor was mighty among the singers of old, named only after Daeron of Doriath; but he came never back among the people of the Elves.”