It was a dark and stormy night, and you were walking alone down a desolate street. You were soaked to the bone and needed to get out of the rain. Then you saw a house. "Thank heavens!" you said out loud. But at second glance, your relief was chilled by the look of the place. It's dark. Only a lone street lamp casts a dim, yellow light on the sad features of the house. It looks as if no one has lived here for many years. The windows are broken. An old, ripped curtain blows from a third-story window. Suddenly, you see a strange looking figure through the window. You try to keep your presence a secret and see just how long the figure would stand there. Your heart feels like it's going to leap out of your chest but you stay there at the window, in some sort of weird staring contest. Then it happens. The figure moves away from the window and you breathe a sigh of relief. But the next night, you hear a thumping sound at your window. Not the sound of a bug flying into it, or the shrubs brushing against it. No, this was an odd noise, something you had never heard before. You didn't think anything of it initially, but it was distinctly rhythmic. Thump, thump, thump. It only lasted fifteen...