And to those wondering about the end, I think this is a much more realistic end. And he's not entirely wrong either, he can't treat her like a wild animal and assume she's best off if he leaves her there. It's not like he knows the circumstances of her race or what drove her to be wounded along on the shore when he first found her. Imagine a Merman finding a hurt human child adrift in the sea, taking her to a small island and feeding/caring for her as best they could, but then deciding to take her to a random nearby continent where there's humans and hoping she finds her family. It may be that she does but there's so many ways that could go wrong. What if her parent(s) were killed by a shark and she has no one else she knows of of her race? What if there's some kind of tribal warring going on undersea? Again, it's very different from caring for a wounded wild animal who only needs its instincts and correct environment (which is still a stretch when it comes to infants who haven't matured).