Under the Sea: a Harry X Voldemort|Tom
AU: the Little Mermaid
A merman found a swimming girl, picked her for his own, pressed his body to hers, laughed; and plunged down, forgetting that even love can drown.
I can't fall in love with this sky, if I know nothing about the ocean. The same way I can't fall in love with your skin, if I know nothing of your soul.
Hadrian, the fourth eldest child to King Dumbledore, saves a human girl from drowning when she's thrown off a ship. His father wants him to marry her, but she doesn't know if he's real. This makes things complicated for Hadrian, who is in a secret relationship with the sea warlock, Voldemort.