If you enjoy books with fairy tale tie-ins, such as Into the Woods by Lyn Gardner, then this is a book for you!
Leo is given a family heirloom, a music box, which has magic powers. When his cousin, Mimi and her dog, arrive for a visit, she winds the music box four times and opens the door to a magical place called Rondo. The adventure begins when the magic is released. The Blue Queen kidnaps Mimi's dog, which causes Mimi and a reluctant Leo to follow her into Rondo. They must travel through this new place and encounter characters from well-known nursery rhymes and fairy tales in order to rescue Mimi's pet. This is an action-packed adventure with a fast paced story line.