Alex and Conner Bailey's worst nightmare comes true: the characters of Fairytale Land - both heroes and villains - leave their world! Morina, the Snow Queen, the Sea Witch and other villains are eager to take over the Other World, and, it would seem, things simply cannot get worse. It turns out it can, because Alex goes missing. New York is in chaos, and Conner and his friends face their greatest battle against a powerful enemy. But how to win the war and protect loved ones from death without Alex? Conner doubts he can handle it on his own. Will she be able to find her sister before it's too late? And will the Bailey twins be able to restore balance between our world and the fairy-tale world?