FOUR GIRLS. FOUR DIRECTIONS. ONE PURPOSE. The earth is gasping for breath; its only hope is the sacred Codes of Nature. But they've been stolen--snatched by a giant raven during a raging storm. SOPHIA ROSE, Guardian of Mother Earth, has summoned MAIA from the North to lead FALCON, AVA, and YUE, on a quest to find the Codes and save the planet. But the odds are against the young rescuers. Time is running out: the bees are dying, the oceans are filled...