Warprize by Elizabeth Vaughan
"I have sworn the same oaths." He tilted his head. "Xylara ..."
"You can't get away with disobeying the King, Eln." I flashed him a smile, "he's not your half-brother."
- page 8 UK edition
I'm about halfway through and enjoying it thus far. Life has sort of got in the way for me recently, but I'm going to make an effort to post at least two reviews a week.