Dracula by Bram Stoker Chapter 3 Page 23

When his head had disappeared, I leaned out to try and see more, but without avail. The distance was too great to allow a proper angle of sight. I knew he had left the castle now, and thought to use the opportunity to explore more than I had dared to do as yet. I went back to the room, and taking a lamp, tried all the doors. They were all locked, as I had expected, and the locks were comparatively new. But I went down the stone stairs to the hall where I had entered originally. I found I could pull back the bolts easily enough and unhook the great chains. But the door was locked, and the key was gone! That key must be in the Count's room. I must watch should his door be unlocked, so that I may get it and escape. I went on to make a thorough examination of the various stairs and passages, and to try the doors that opened from them. One or two small rooms