about
midnight
`` Might just as well be put under lock and key every night , '' he thought irritably , as nonplussed as though he had a wall to scale with the woman on his back . Suddenly he slapped his forehead . He had by dint of cudgelling his brains just thought of the Southampton -- St Malo service . The boat left about midnight . There was a train at 10.30 . He became cheery and ready to act . `` From Waterloo .