Susie's new little sister has a gift for magic, but it's causing problems for the community. Will Susie learn to accept that Mildred is more powerful, and will the townsfolk be able to accept the most powerful witch in the world?
On her 15th birthday, Susie must prepare for her Gibbous Rite Ceremony. Will Mildred be able to keep her chaotic magic in check for just one day so Susie can become the full witch woman of her dreams?
Mortimer and the monsters must figure out how to send Oscar back to his own time, but the only person that can help is the foe of monsters everywhere: a witch. Will they all be able to work together to get Oscar back to Hedgehog?