Eternity's Shadow - Shadow Trilogy, #1

   I pushed Brooke's body off the bridge in the dark of night. Ten years later, I would meet her for the first time. It was the night our world ended in a cloud of darkness. Brooke saved my life by taking me to the Nexus.     It was a place beyond anything I thought possible, with passages to other realities.     "Come with me through this doorway, " She said. "And I will show you all the Earths, in all the universes, in all Creation.
I promise you'll go places you've never dreamed of, and see things you could never imagine."     Brooke led me to the door.     "But, " She warned. "There are things in play, very dangerous things, that want to destroy all of existence, like they destroyed your world. And they must be stopped."