Vriel is vomiting every morning, and her partner David asks hopefully if she thinks she's pregnant. Her sister pays a visit, and they look at her and David's elaborate fish tank. Vriel remembers how fluidly Cassia swam in childhood, surrounded by fish. Cassia reads Vriel's journal entry, detailing to David what it's _really _like to have the powers of a mermaid. But she doesn't mean for him to read it.

Cassia and Vriel go out to dinner. Vriel hasn't used her power, she says, since she sang a song that coaxed a boy to drown on a field trip to the aquarium at the age of eight. She's a siren who can't swim, her mother told her. This power stays - Vriel can attract all the men she wants, to a fault. One of her boyfriends overdosed after she broke up with him.

Cassia drives Vriel to the cove where their mother first showed them what her transformation looked like. It was there they discovered that Cassia could swim like their mother, and Vriel couldn't. They began training her successfully, but Vriel gave up, knowing she couldn't come close to them. Then their mother died of cancer.

Cassia stops the car. She grabs a knapsack, takes off her clothes, and gives Vriel the car keys. She doesn't beg Vriel or explain, even though she did pack a second bag in the car. She simply goes down to the shore and vanishes. Vriel drives away.