Usually, a visit from Friar Ipswich is a happy time, but when he emerges months early from the time pocket library where he lives doing research, 'Na and her friends are justifiably worried. Especially when he comes to the enchanted castle accompanied by a rather unpleasant couple who claim they need help.

The housekeeping breezes don't like this couple, which is just another warning sign. Then doors open and footsteps are heard moving through the castle, along with other signs that either a ghost has decided to move in, or someone has invaded, using an invisibility spell. What does he want? Is he a tool of the unpleasant couple, or their accomplice? Will the wonky magic of the castle interfere with undoing his invisibility spell and allow him to accomplish his mission? And just how jealous can Ambrose get, when the invisible man tries to steal a kiss from 'Na?