The Curse of The Ancients. Quintarra

Twenty-seven-year-old Alora breaks out of her Brooklyn cage straight into the astral plane. A Grimoire drags her to Argos, where she learns her dark alter ego has sold herself to an ancient spirit eager to weave the reality anew. The price of the new creation? Every single one of Alora’s incarnations.
Trained in blade and forbidden magic, she grows stronger — but a spark of that ancient evil hides within her. Now she must choose: fight alongside her allies — or become the very evil she fears.