If the Magic Fits by Susan Maupin Schmid

If the Magic Fits has many of the fairy tale components that I enjoy, a beautiful princess, magical castle, a helpful white mouse, and dragons. With a little help from her friends and a white mouse, Darling will do everything she can to protect Princess Mariposa and keep the castle safe. While disguised, Darling is able to pass as the castle staff and is how she overhears Prince Baltazar plans to marry Princess Mariposa and wreck havoc on the kingdom by releasing the stone dragons being held in the castle spire. The dresses become magical when the canary begins to sing and each dress Darling tries on disguises her as someone else. When Darling chooses to put the canary into one of the many wardrobe closets, she inadvertently finds a room with one hundred dresses that once belonged to Princess Mariposa's grandmother. Darling's new position comes with an unusual task, removing Princess Mariposa's canary from her chambers and finding a safe place to keep it nearby. That is until Darling's storytelling and daydreaming cause her to splash dirty water all over the Supreme Scrubstress and lead to her getting reassigned to the upper attics ironing the princesses linens for the Wardrobe Mistress. With nowhere else to go, Darling soon finds that everyone who stays in the castle must perform some job, and her first one is scrubbing the pots and pans for the Supreme Scrubstress. Jane works in the castle's kitchen slicing vegetables until an accident causes her to be transferred to picking flowers in the garden. Darling Dimple has lived with her adoptive mother Jane in the kingdom of Eliora ever since her own mother passed away shortly after she was born.

If the Magic Fits by Susan Maupin Schmid