Heatheria Winchester's life takes another unexpected turn when she learns that her greatest mission is literally over the horizon. It has been one year since Heatheria came to live with Princess Luanne and her father, King Adamant, and she has decided to inform them of her true heritage, as she has been living under the name "Heather" Winchester since then. However, her decision could not have come at a worse time, because Heatheria soon learns of a Magic Jewel called the "Onyx of Darkness" and its quest to conquer the world with its power. And if that wasn't enough, Heatheria also learns that the familiar she's adopted as her own--Astral--is really her mother, Marisa Winchester, in disguise. Even more changes await Heatheria as she makes plans to head for Doloria and find the rest of her family, as she discovers that she is one of a set of fraternal triplets separated from each other to be protected from the Onyx of Darkness. Will Heatheria be able to fulfill this destiny by finding her brothers and defeating the Onyx of Darkness?