This is book number 1 in the Casquette Girls series.
After the storm of the century rips apart New Orleans, sixteen-year-old Adele Le Moyne and her father are among the first to return. Adele wants nothing more than to resume her normal life, but with the silent city resembling a war zone, a parish-wide curfew, and mysterious new faces lurking in the abandoned French Quarter, normal needs a new definition.
Strange events--even for New Orleans--lead Adele to an attic that has been sealed for three hundred years. The chaos she accidentally unleashes threatens not only her but also everyone she knows.
Caught in a hurricane of myths and monsters, Adele must untangle a web of magic that weaves the climbing murder rate back to her own ancestors. But who can you trust in a city where everyone has secrets and keeping them can mean life or death? Unless...you're immortal.