Orphaned at a young age, the Saddle Arabian horse known as Heavenly Quill must venture out of his comfort zone; set out on a quest for vengeance against the Minotaur that took his family, his ability to trust, and his bright future away. With the help of some friends he meets along the way, however, he slowly starts to find his ability to trust again. With his new-found trust, however, he begins to wonder if vengeance would be the right thing, or if there was more to this assassin than meets the eye.