When I opened the door, I immediately knew there was someone in my house. I asked “Is there someone?”, but no one answered, so I went to the kitchen and started making supper. While I was chopping tomatoes I heard knocking upstairs. The knife fell out from my hand. I picked it up and went to the stairs. The noise was going from bathroom in the end of the hall. I turned on the lights and went straight on, my heart beating was very loud.