She's a siren by blood. A science nerd by choice. And she's about to pick a fight with the ocean itself.

To most mermaids, the Salt is sacred—an ancient tide that claims your memory, your voice, and your past. But Eadie Jackson isn't like most mermaids. She's the youngest of triplets, allergic to destiny, and still angry that the sea took her mother.

She wants a normal senior year: survive her bully, ace her science fair, and maybe get Seth Foster to look at her like she's not just weird-Jackson-girl number three. But when Eadie discovers a mermaid trapped in salt-flush—her memory wiped, her identity gone—she realizes the Salt isn't just cruel. It's a cage.

Now the ocean wants Eadie too. And it's not used to hearing no.

Can the "weakest" Jackson sister outwit ancient magic without losing herself—or the only normal life she's ever wanted?

Aquamarine is a fierce and funny YA mermaid fantasy packed with high school chaos, slow-burn romance, and a heroine who refuses to sink.