Mordred-Night Wolves by Lisa Daniels

A world illuminated by magic. A princess forced to another kingdom. All to marry a monster…

Kiara never expected to be shipped off so soon. She always thought it would be her older sister to get married first. She never took well to lessons, to learning to be a proper princess… and now they expected her to help forge the alliance between her people and the people of Kanthus.

The Kanthians were said to worship gods – false ones. Those with such blood in their veins usually ended up with yellow eyes.
And somehow, they expected Kiara to marry one. Except, the arranged alliance and potential marriage didn’t quite work out the way she expected…