Inside an enchanted castle, there's a closet--a closet with one hundred dresses that nobody ever wears. Dresses like those need a good trying-on, and Darling Dimple is just the girl to do it. When she tries on Dress Number Eleven, something unbelievable happens. She transforms into the castle's Head Scrubber! It turns out that each dress can disguise her as someone else. And Darling is about to have an adventure that calls for a disguise or two . . . or a hundred.