Empire's Hostage

How do you trust an adversary who's your only hope? After eighteen months of war, Lena's Emperor asks her to stand as hostage to a truce. Sent north of the Wall to live among people who were the enemy only days before, Lena learns the secret reason behind their invasion of her land - and challenging their leader over it may prove to be her worst decision yet. Far more than the success of a truce is now in Lena's hands, but in a place she neither knows nor understands, she needs help. But how do you convince someone who hates you and everything you stand for to work together to save both your lands?