Witch Trial

The sisters face a demon called Abraxas, who steals the Book of Shadows and undoes some of the spells they've cast (in reverse order), releasing old vanquished enemies of the Charmed Ones and forcing them to remember the vanquishing spells from memory alone. The sisters have one chance to recapture the Book of Shadows or they will lose their powers forever. The Halliwells meet their new neighbors, Jenny and her uncle Dan Gordon, who debut in the series as supporting characters. Phoebe and Piper learn through the Wiccan community that because their anniversary of receiving their powers falls on the equinox, a wiccan holy day, their abilities will be temporarily augmented and their powers permanently so.