Gizmo and I were sitting in the living room watching tv around midnight. It was windy and raining out, a miserable evening outside. We suddenly heard a loud noise from the kitchen. Gizmo began to bark and jumped off the couch. I followed him into the kitchen. After turning on the light we both stopped abruptly when we discovered the kitchen door wide open.  Gizmo just growled softly. There in the doorway appeared to be a silhouette of an arm turning towards the inside of the kitchen. I wasn't sure if a burglar was standing off to the side of the door or if it was just some shadow created by something outside. Just as the hand nearly reached inside, the door slammed shut. I'm not usually a jumpy person but this made me jump. My heart was pounding hard as I quickly went forward and locked the door. I slowly backed away keeping my eye on the door. Gizmo and I stood in the kitchen for several minutes until we felt it was safe enough to return to the living room. I'm not sure what that was all about but that scared me worse than anything else that has happened so far.