seven o'clock
`` I will watch him , '' thought our hero . `` I do not like his looks . If he means mischief , as I think very probable , it is necessary that I should be on my guard against him . '' At half-past seven o'clock Mr. Carroll signified his intention of getting out at the next station . `` I am beginning to feel tired , '' he said , `` and shall feel the better for a good supper and a night 's rest . '' `` Very well , sir , '' said Herbert . It occurred to him that now they would get rid of the man who was watching them so closely .