nine o'clock
However , there will be plenty of time to talk of all that . '' Then he changed the subject . He drove her back to her rooms and went upstairs with her . It was about half-past nine o'clock . `` I have to go and meet a man at the Athenæum at ten , '' he said . `` Hang it ! But I will stay with you for a quarter of an hour , and I dare say you wo n't be sorry to turn in early . ''