At the Battle of the Bands the Sirens were beaten, bested by the power of seven girls and their friendship. Adagio, her power broken for the first time in her long life, fled from the scene and separated herself from her annoying sisters. After some time she returns to the place of her defeat, where she accesses the portal that should take her home... though instead she ends up in a world that's in the middle of a civil war.

She'll have to rely on whatever skills she has left, and pick up some new ones, in order to survive in this world... especially when dragons, vampires, and who knows what else start attacking innocent people. And maybe, just maybe, she'll redeem herself for all of the acts she committed in her long life.