Four girls are about to become princesses! But can they keep their kingdom safe? Read to find out-- and collect the full sheet of sparkly holographic stickers in every book!In the Jewel Kingdom, four girls rule: Roxanne is the Ruby Princess, Sabrina is the Sapphire Princess, Emily is the Emerald Princess, and Demetra is the Diamond Princess.But soon-to-be Ruby Princess, Roxanne, is not so sure she's ready to be royalty. She decides to run away! But before she can get very far, she learns of a plot to take over the Jewel Kingdom. Another girl is pretending to be her. If Roxanne doesn't act fast, the Jewel Kingdom might be lost forever!A full sheet of sparkly holographic stickers in every book!