The last thing Arcana "Arc" Mcdonald remembers is drowning-and a pair of glowing green eyes. When Arc wakes up, drifting against current in a little red rowboat, she has no recollection of how she got there or where exactly she is-all she has are her wits and the sassy green siren who's determined to help her get her memory back. It doesn't help that this siren is gorgeous, has sharp teeth, and probably eats people. Right?