In a nutshell,
Moonheart is Moonstruck, the once beautiful she-cat that controlled the strings of fate, controlling who died when. Cats had hated her for her appearance, blood-red, ragged, winged, flaming-eyed she-cat, and her job to make sure that the void between the world of the living and the world of the dead did not break by making sure things went the way planned by StarClan.
When re-born, she was white, wingless, and had dazzling green eyes, and was the daughter of the dearly loved and gentle Wildstorm. She eventually grew wings, but most cats didn't seem to care. Her siblings, two toms, the same as her first life, saw her as a god now. But, she falls in love with a tom, who does not care for her, and after several attempts at showing her feelings, he reveals that he hates her. Where will the shards of her heart direct her?
Need volunteers. Two toms to be her brothers, and another tom to be the heart-breaker. So, who wants to be what?