Seven o'clock
If he could not report where Mr. Mitchel had gone , at least he might discover at what time he returned to his hotel , and possibly Mr. Barnes might receive some valuable hint by the lapse of time . With this idea , Wilson returned to the Fifth Avenue Hotel and waited patiently . He telephoned to head-quarters only to hear that Mr. Barnes had gone back to Boston to bring Pettingill to New York . Seven o'clock arrived , and yet his vigil was unrewarded . It suddenly occurred to him that as he had seen Mr. Mitchel purchase tickets for the Casino , that might be a good place to watch , though of course there was no certainty that they were for that night . Upon this meagre hope he hastened up-town and stationed himself where he could keep an eye on all who entered . At ten minutes past eight he was about concluding that his task was useless when a cab stopped , and to his intense satisfaction he saw Mr. Mitchel alight , and then hand out a handsomely-dressed woman .