Prologue

Sonic holds a secret. A dark secret that not even Tails knows about. He's a merhog, but not just any merhog. He's a Siren, a predator of the sea. He's done well to hide it so far, but when his friends insist on staying at a beach house for a whole week, he's not sure how much longer he'll be able to hide his killer instincts. Especially when there's a greater threat in the water. (Eventual Sonadow)

Inspiration taken from Freeform's Siren.