half past four
`` He 's right , '' snapped Smith . `` Therefore he came and returned secretly , '' continued the inspector ; `` and if we are to do any good , obviously we must adopt similar precautions . The market wagon , loaded in such a way as to leave ample space in the interior for us , will be drawn up outside the office of Messrs. Pike and Pike , in Covent Garden , until about five o'clock this afternoon . At , say , half past four , I propose that we meet there and embark upon the journey . '' The speaker glanced in my direction interrogatively . `` Include me in the program , '' I said . `` Will there be room in the wagon ? ''