two in the morning
`` I do n't think there is any danger of striking rocks . '' `` Not unless the steam yacht sinks a mile or two , '' said Tom , with a grin . It was decided that one person should remain on watch during the night , to report any vessel that might pass and to watch the fire under the boiler . Dick said he would stay up , and Tom told his brother to call him at two in the morning . `` And call me at four , '' said Sam . `` I want to do my share . '' The night proved to be as misty as that previously passed , and although first Dick and then Sam and Tom kept their eyes on the alert , nothing was seen or heard of any other vessel .