Bob drove back to the school, slightly over the speed limit. I raced up to my room and grabbed the gun I had found in Mueller's room and I streaked up to Professor Mueller's classroom where he was busily grading papers. I slowly walked up to his desk. "Ah, Laura," Mueller said smiling. Washington Irving, who had been basking in the sunlight on a windowsill was now walking towards me, mowing angrily. I suddenly realized that I had no proof that he did it. I remembered reading that a good detective doesn't make an accusation until they were completely sure. "I, uh, just wanted to say hello," I stammered. "Oh, well, I've been meaning to talk to you. You haven't turned in a single assignment," Professor Mueller said looking through his papers. I suddenly felt dizzy. In my haste to accuse Mueller, I hadn't thought about the bump on my head. "Laura?" Professor Mueller said. I could see panic etched in his face. "I don't... feel... good," I stumbled. backwards. "Let me take you to the hospital wing," Professor Mueller said. I knew I shouldn't go with him but I had no choice. He was already pulling me out of the classroom and down the hall. I lied in bed for hours. The nurse reported that I didn't have a concussion but was extremely exhausted. I was sent back to my dorm where I slept until midnight. I got everything ready to find those secret passageways. I decided to check the hall first. It was dark in there so I took out my flashlight. I walked every inch of that hall and knocked on every centimeter of the walls. Nothing sounded hollow or felt like a floorboard could move. I shined the light at the high ceiling. Nothing was there. I then turned my attention to the paintings. One, which I think was clown, had big scratch marks on it. When i got a closer look I saw they were so deep that it made it through the canvas. I looked through the marks and saw a metal compartment. I chuckled. It's always behind the painting. I took the clown picture off and set it aside. I then lifted up the compartment. Only and arm could fit through the compartment. I reached through and my hand broke spiderwebs. There was a piece of paper that was rolled up and tied with a faded, dusty red ribbon. I untied it and looked at the paper. It was an old sudoku puzzle. Great. I'm the worst at sudoku puzzles. My sister, Annabelle who is also a sleuth, is the real genius at them. I stuck the sudoku in my bag and took off up the spiral staircase before anyone caught me sneaking around. headed into the library. This was going to be hard. Behind any book could be the secret passageway. I leaned against a bookcase, trying to decide where to start, when I toppled backwards. The bookcase had moved about two inches. In the ground was a circular hole, the similar to the one in the hall. I reached my hand through again and pulled yet another paper. As I opened it up I figured it was to be another sudoku, but I was surprised to see that it was a crossword puzzle. Luckily, I was good at those. I next headed to the final destination, Professor Mueller's classroom. It was slightly open. A sliver of light shone through the crack of the door. I opened it wide enough to just shove my face in. Professor Mueller was sitting at his desk, twirling around in his swivel chair and glancing at his watch every now and again, as if he were expecting someone. For all I knew he could be. Mueller walked over to his bookcase. He pulled out a book, looked around and opened. There was an empty metal box where the pages were supposed to be, glued to the back cover. In the box was a roll of paper, identical to the two I had found. Mueller took out the piece of paper and unrolled it. He read a few words of it, looked straight ahead of him at his bookcase, put the paper back in its original state, and threw the book at a nearby vase. He looked so violent that I almost screamed. I realized that if he was waiting for someone, they were to come through this door. I was about to pull away when a compartment in the ground opened up and Martin Greenbranch climbed out holding a canvas. I gasped. The moon was right tonight.