Short story part 4 "mark"

In my house, there is a wardrobe where we keep so many bed cloth, and it is quite huge. When I was little, I loved to sleep between the soft bed cloth in the wardrobe and make some tunnel and I treated there as a kind of basement. One day, I played in there with my fabourit teddy bear "Gon". I felt worm wind from deep inside. Suddenly, Gon went away from my hand and I lost him in somewhere. I called him as silly but I heard something slightly. I was going deeper and deeper, the tunnel was going to be smaller and smaller, but the voice was getting clearer and clearer. Finally, I hit to the end of the tunnel and it was the wall of the house. I heard the voice from the behind me though, I stare at the wall in the dark. And it was scary but on the wall I found a black mark. It was darker than the dark. My curiousity made me move my hand to the mark. Slowly, but steady, my fingers were getting closer to the mark. "Don't do that". Gon talked me right next to my eyes. Suddenly, natural light came into my mind, and Iwas found in the wardrobe without concious by my mother. I still can not figure out what was the mark. But, perhaps, there might exist something which the others can not believe.