The Trinitor Chronicles- Night Sky Burning

Keep your eye on the skies. Asher Fields is destined to be a Pegasus hunter, just like his father and his father before him. But when he fails to pull the trigger during his final hunt as an apprentice, Asher is forever marked by shame. Determined to protect the creatures he's only just beginning to understand, Asher unwittingly causes a tragic accident. Wracked by grief and guilt, he disappears into the wilderness, far from civilization and safety. There, a witch offers to remove his pain, in exchange for his memories and eternal servitude. And she won't take no for an answer. Destry Kivisto is a woman with secret. Descended from a royal bloodline, her name marks her with power - and as the target of a bitter vendetta. After her adopted mother's death, Destry is hunted by those who wish to wield the power she secretly holds. The only option left is to run. Given sanctuary by a southern kingdom in return for her presence on their battlefield, Destry quickly becomes entangled in the politics of freedom. But above the betrayal and bloodshed one truth rings clear: friend and foe alike have the same enemy.