D J Butler 
Crow Jane [EPUB ebook] 

A fantasy novel inspired by the biblical story of Cain and Abel, in which a cursed woman makes a deal with Heaven so that she can escape her endless life. Millennia-old Jane was Qayna in her youth, before she resisted the will of Heaven and became the Marked Woman. Now she only wants to die, and the Legate has offered her a deal—recover an item stolen from Heaven, and in exchange her curse of immortality will be lifted. Can Jane steal back Azazel’s hoof? Will the fairy folk of the Mirror Queendom stop her? And what exactly is the Legate's game?