six o'clock
It was `` Forty Thousand Dollars Taken from the Safe . '' `` There 's the owner of the abandoned automobile , the fellow who boarded the train with the heavy grip , '' said Ted to Bud , who was staring over his shoulder . The article following the startling headlines told the circumstances of the robbery . The train that entered the Union Station at six o'clock that morning had been robbed in some mysterious manner between a junction a short distance out of St. Louis , where the express messenger had been seen alive by a fellow messenger in another car . When the car was opened in the station , after being switched to the express track , the messenger was found lying on the floor of the car with a bullet through his head . The safe had been blown open and its contents rifled . The express company had kept silent about the murder and robbery until late in the day , when the body of the messenger was found by a reporter in an undertaker 's establishment .