The Shining Light of Ennendreal by L. M. Quilliam

Waking in the middle of a grassy plain covered in cuts and bruises and completely alone, the man who calls himself Rory has no idea who he is, where he is or how he got there. With little more than a Crystal Sword in his possession Rory sets off on a journey of self discovery, unaware that he is already hunted. What follows is anything but ordinary as the lives of those he comes to meet are thrown into disarray as the woman he comes to love is kidnapped by those hunting him.