one o'clock before
`` About that , '' Bertie replied . `` We had better get our oars and help her along , she is not going much more than a knot through the water an hour . '' They got out the oars and set to work . Occasionally a puff of wind gave them a little assistance , but it was one o'clock before they arrived alongside the _ London _ . A lamp was alight at the gangway as arranged , and two sailors were on watch . `` The captain turned in an hour ago , sir , '' one of them said . `` He left orders that the mate was to call him if you arrived .