ten
o'clock
He had other views for the speaker . He was puzzled , too , at all these quick changes , and because there were so many threads in the plot . `` I can give you an hour , '' the girl said . `` I _ must _ be in London by ten o'clock . '' `` Very well , I dare say we can manage it by that time . As I told you in my letter , I am a very old friend of your father . We were in one or two ventures together , and some of them turned out to be very successful indeed .