The Bridge Kingdom by Danielle L. Jensen — book slip

Lara has been trained her entire life to be the perfect spy and weapon against the Bridge Kingdom of Ithicana. Sent as a bride to King Aren under the guise of peace, she is determined to bring down his kingdom from within.

However, as she begins to understand the complexities of the war and her feelings for Aren grow from icy hostility to passionate love, Lara must decide where her true loyalties lie.

Will she betray the man she loves to save her homeland, or will she fight for a new future?

First in the Bridge Kingdom series.