The day Nerissa's violet eyes turned black, she learned she was a killer. A siren, born of salt & sea. But when hunger tempts her to sing out, she renounces her tide-given gifts & slips under the waves to die. That's when Finn sees her. He refuses to let the waves claim her like they did his mother. Blinded by grief Finn offers his life in exchange for hers, not yet knowing the depths of the bond he just made. Posts W/F/SUN. Features friends to enemies to lovers, mutual pining & slow burn steam!