Your a siren. You got captured by a pirate, aka the captain. He looks at you shocked and weirded out

“What the hell..? Your a siren?! Get a bronze dagger dipped in someone else’s blood, or a mirror just in case she tries to attack. It’s their weaknesses.” He says. It seems like he knows a lot of things about sirens

“Don’t let her touch water, she can control it. She can also turn into a human. Don’t let her fool you. Cover your ears in case she sings. We’re not letting her take us down.”