ANOTHER SCREAM FOLLOWED. I HAD NO idea what direction the sound was coming from but Logan, with his superior hearing, obviously did. He ventured to the right at a T-junction. I was meters away from him and pushing to get closer. I’m coming, Mary-Ann. Then, as I reached the junction and turned right, I narrowly saw Logan disappear through one of the doors. Pushing myself to the limit, I finally paused in front of the door, just in time to hear another scream coming directly from behind it. I pulled at the door. It didn’t budge. I blinked and tried again. I pulled the door so hard my arms strained, but it didn’t open. Then I pushed against it, throwing my entire weight against the wood, but I might as well have been battling concrete. “Logan!” I yelled. “Open up!” It had gone eerily si

