midnight
`` I had n't noticed that , '' the Captain said . `` This shows that some one in this hut was expecting a visit , and also that the visit was to be kept a secret from you . The front windows overlook your quarters , and the window entered is the one most protected from view from your place . Now , this precaution may have been taken by the midnight visitor , coming here as a friend , or by an enemy , for the purpose of concealing from you what went on here . '' `` And that is why the Lieutenant did not sleep under my roof ! '' said the Captain . `` He was expecting the fellow .