The Robe Of Skulls Tales From The Five Kingdoms Series, Book 1.

Trouble is brewing in the first book of the Tales from the Five Kingdoms series. The sorceress Lady Lamorna wants a skull-studded gown of deep black velvet but finds her treasure chest empty of gold. That doesn't stop her from kidnapping, blackmailing, and using more than a little magic to get what she needs. Will all her best-laid plans be foiled by the heroic Gracie Gillypot, two chatty bats, a gallant (if rather scruffy) prince, the wickedest...