Bella, Amaya, Violet, and Skyler all woke up from the same dream—only to find brand-new rings on their hands! According to Sunny’s History of the Shimmers book, history might be repeating itself, and the Moonbow Crystals are totally out of balance. But why is Miss Morton acting so calm about it? With their mysterious rings and a little crystal confidence, can the girls uncover the truth and restore the color balance to Rainbow World before it’s too late?