No invitation to the adults-only costume ball? That won’t stop Angelina from going. She and her best friend, Alice, find a way to sneak in and fool all the grown-ups. But can the two mouselings remain undiscovered, or will they somehow blow their cover?No invitation to the adults-only costume ball? That won’t stop Angelina from going. She and her best friend, Alice, find a way to sneak in and fool all the grown-ups. But can the two mouselings remain undiscovered, or will they somehow blow their cover?