six o'clock
`` We 'll get a taxi and run down to the flat and pick up Joyce , '' I said . `` Then we 'll come back to the Café Royal and have the best lunch that 's ever been eaten in London . '' Tommy indulged in one of his deep chuckles . `` If anyone 's expecting me in Downing Street before six o'clock , '' he observed , `` I rather think he 's backed a loser . '' It was not until we were in a taxi , and speeding rapidly past the House of Commons , that I broached the painful subject of George . `` I do n't know what to do , '' I said . `` If he 's at his house , he has been arrested by now , and if he is n't the police will probably find him before I shall .