eight o'clock
` She 's a girl of spirit . I 'll take good care not to betray her . Oh , we 'll circumvent old Dibbs between us . ' `` At eight o'clock I went down to the salle a manger . It was quite empty . Mary and Miss Dibbs no doubt dined in their own sitting room , and there appeared to be no one else in the hotel . However , when I was halfway through my meal , a stylishly dressed young woman came in and sat down at a table at the end of the room farthest from where I was .