The Crowded Shadows (Moorehawke Trilogy #2) by Celine Kiernan

NEW FRIENDS.   OLD ENEMIES.
WHO CAN YOU TRUST?

ALONE FOR THE FIRST TIME IN HER LIFE, Wynter Moorehawke travels unprotected in bandit-infested mountains, searching for missing Prince Alberon.
   But every tyrant and bully who has ever threatened the kingdom is gathering to Alberon's table, and the forest is alive with spies and wolves. Within these crowded shadows, Wynter remains determined to find the Rebel Prince and heal the rift that has come between King and Heir.