"Dreaming of Bats." Only two things are certain about the mysterious door that has appeared in the Outsiders' ship. The first? It was opened by the Drummer, using a set of Multiversal coordinates discovered in a dream. The second? Their computers have identified it only as a "narrative singularity." For most, to step through such a door would be unthinkable, even insane -- which makes it a perfect mission for the Outsiders! As Kate Kane and Luke Fox venture into the unknown reaches of the Multiverse, they will fall deeper and deeper into a maze of darkness, guided by unfamiliar versions of familiar faces. What is this strange world they've discovered? How are they connected to it? And who is lurking in the shadows, ready to destroy it all?