The hand on the window by Aadeeb

As I trembled to place my foot onto the doorstep, I felt a gush of wind blowing towards me. The door creaked open and in front of me was the last owner of the house. I bought the mansion and now the mansion was mine. I walked around and it was really gloomy and then suddenly lightning struck. I jumped in fear and through the window I could see a figure walking towards my mansion. He was covered in a dark cloak. Then there was a hand. I opened the door, there was nobody! What was that I could feel?