A siren on the run. A ship full of strangers. A storm that knows her name.

Gina is running from a life she can't explain—and a truth she can't face. Under false pretences and with no plan beyond the horizon, she boards a historic sailing ship hoping to vanish into salt and sky. But when she meets someone who sees more than he should, and a storm that feels more like a reckoning than an accident, Gina realizes the sea has plans of its own.

For one boy, she's unforgettable. For the sea, she's unfinished business.

Cobalt is a haunting prequel about identity, escape, and the beginning of a legacy far bigger than one mermaid.