nine o'clock
The training over , I would lock him in the basement as usual . But one night I had a dispatch come to me summoning me to another city . The other man was to call that evening , and he came . I left before nine o'clock , but just before going I released the dog . He darted for the post in the garden , and with gleaming eyes crouched , as he had been accustomed to do , watching the entrance of the arbor . `` I can always sleep well on a train . I suppose the regular sequence of sounds , the rhythmic throb of the motion , has something to do with it .