Burge, Constance M. - Charmed: Changeling Places

Baby Wyatt has been stolen by some renegade elves. When it turns out he's not the only baby who's been taken from Paige's day care centre and replaced by a changeling, the girls realise something is amiss. The Charmed Ones will stop at nothing to save Piper's son! But how can they protect him and the other missing babies when they don't know where there are?