Read The Diamond Princess Saves the Day Storyline:
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.Some of Princess Demetra's subjects have become trapped inside a mountain. She must risk everything — including her crown — to rescue her subjects!Pages of The Diamond Princess Saves the Day :