Charmed, tome 38 : Phoebe Who?
Constance M. Burge2007

The life of a Charmed One is never easy. What with balancing work, sisters, and a secret second job ? saving the world ? it's no wonder Phoebe feels in need of a break! But little does she, and her sisters, Piper and Paige, know that they are about to get one.
After a huge battle against the forces of evil, Phoebe wakes up completely unaware of where ? or who ? she is. A woman named Sandy finds her and Phoebe is eager to embrace Sandy's laid-back lifestyle... not knowing, of course, that her sisters are in a panicked search. And when Sandy suggests that they have to track down two evil witch sisters, Phoebe doesn't think twice...

Titre original : Charmed, tome 38 : Phoebe Who? (2007)