In the Constellation of Seres, the home of the thousand stars, lives the sirens. Their enchanted voice works like ecstasy. Luring travelers from their ships, making them go mad, and once they're at the point of no return, they die. Mera is a siren, the most deadly of them all. And as the heir of the golden star, her sister will soon be the Queen. If she doesn't suddenly disappear. Now Mera has less than two fallen stars to get her sister back; or sirens, and their constellation will cease to exist.