547500 Champion of Fate by Kendare Blake

TO BE AN ARISTENE IS TO GIVE UP YOUR MORTAL LIFE AND TO BE GRANTED A NEW ONE. The Aristene is a mythical order of female warriors. While heroes are the ones immortalized in legends, it’s the Aristene who guide their paths to victory. They are the Heromakers. Reed – an orphan raised by the order – has always dreamed of taking her place beside her sisters-in-arms. To do that, she must help her first hero achieve glory on the battlefield. Nothing is going to stop Reed. Until, that is, she is assigned the fiery and infuriating Prince Hestion. As their alliance turns into something more, she starts to question the true cost of becoming an Aristene. With battle looming, Reed must make an impossible choice – her hero or her order.