Amandla Stenberg: 2 books

Niobe Ayutami is an orphaned wild elf teenager and also the would-be savior of the vast and volatile fantasy world of Asunda. She is running from a past where the Devil himself would see her damned... toward an epic future that patiently waits for her to bind nations against the hordes of hell.

Niobe struggles between her affections for the Elven boy who should be her soul mate and the Half Orc warrior who stands trial for murder. Her decision is made when she champions her would-be foe in a trial by combat where more than love is at stake.