about
midnight
`` He 'll be here by and by . '' The secretary lighted a cigarette . He did not share Bob 's anxiety and felt no undue fret over a little delay . `` I telegraphed the _ comandante _ to send driver and car here about midnight . He 'll be here before long , '' he reassured . For an hour Bob walked back and forth peering at every turn far into the desert , listening until his ears ached . But no sight of car , no sound of puffing engine .