ten o'clock
`` Better look for that back-door key , '' he retorted . `` What has the back-door key to do with it ? '' she asked sullenly . `` Only this , '' he replied , `` that while that monkey-faced dog of a Christian was whispering to you just now , I know that the key was hanging on its usual peg , but I heard something about ` supper ' and about ` ten o'clock . ' May he break his neck , I say , and save me the job . Then he ordered me out of the room . Oh !