About six o'clock
`` How long will they keep me ? '' he asked himself . `` They ca n't keep me here forever . '' About six o'clock the door was opened slightly , and a plate of bread and butter was thrust in , together with a glass of cold water . Who brought it up Phil did not know , for the person did not show himself or herself . Phil ate and drank what was provided , not that he was particularly hungry , but he felt that he must keep up his strength . `` They do n't mean to starve me , at any rate , '' he reflected .