Princess Summer is so proud of her amazing kingdom of Mirrania. She can't wait for her friends, Maya, Lottie and Rosalind, to visit. They'll love the little koala cub who lives in the bush. He's adorable! But when the cub becomes ill, the Rescue Princesses must find a cure, even if it means going into the bush in the middle of the night. THey just hope the magical Rainbow Opal can keep them safe... -- back cover.