The Unseen by Jacob Devlin

If you are a fan of fractured fairytales or the show Once Upon a Time, The Unseen is a book you would enjoy. Set in both the Old World and the New World, Alice, Peter Pan, and Pinocchio try to rescue their children who have been pulled through a mirror. The children are on their own quest to reunite with their parents. They must battle the forces of the Red Hearts and the Ivory Queen. Love is lost and found, friendships are tested and battles are won and lost. I would suggest reading the first book, as I was a little lost at first, although you can read it as a stand alone. There is also a book #1.5 called The Ivory Queen.