To Catch A Bandit by Emma Dean

Assassin. Phantom. Raven.
Emily is one of the most elite assassins in her flock. She is only one of two ravens granted the right to hunt solo at only twenty-three years old. Her first mission: find and take out an unknown target at a specified time and location.
It should be easy enough, and yet…the last thing she expected was to see the male she’d danced with during the witches’ Samhain Ball. For the first time in her professional career, Emily froze. It was the first time she couldn’t make the kill – not without answers.
Little did she know she wasn’t the only assassin hired. There are three others to ensure all four raccoons shifters are dead. But before she can figure out what is going on, the raccoons take her through a portal and she lands in a different world.
Will Emily follow them on their adventure, explore the feelings she still has for them, or will she follow through on her contract and kill the man she might be in love with?