as i slowly walked around the hangar i realised that i had stepped back into history , everything was as if the crews had just gone down to the local for quick pint , or to visit the mary celeste , and not only had the aircraft been prepared for their next masters but also the offices , accommodation , kitchen and stores ; it was obvious that the last thing that herr oberstleutnant had done before he locked the door and placed the key under the stone was carry out an inspection .