Sheriff Stilinski and his wife couldn't have children. In her desperation, Mrs. Stilinski found a young Selkie boy and hid his sealskin. Only she knew where it was hidden; when she died, so did that knowledge. Stiles grew to love his human family as his own, even grieving the death of his captor/mom, but the sea still calls to him in Beacon Hills.

Tim refrains from telling Jason that most people are terrified of sharks. It seems a bit pointless. Tim isn't most people, after all.

Derek is only too aware of his destiny - choose a calling, ascend to the pantheon of gods that the rest of his family is a part of. Trouble is, though, he can't seem to decide where to focus his strengths, shies away from the power and responsibility thrust upon him and prefers to escape and to watch the progress of humanity throughout time. He feels a bigger affinity with the humans than with his own kind, and revels in watching the fragile, mortal creatures he loves so much embody all the traits he holds dear. It's a passing hobby, that is, until he catches a glimpse of someone who demands his attention like no other.