"O'Neill is at the Fordham Road house," said Ashton-Kirk. "I want you to relieve him at noon."
"Very good," said Purvis. "Any instructions?"
"Nothing more than that you are to keep track of anything that may happen. O'Neill is to relieve you again at midnight."
When Purvis had taken his leave, Ashton-Kirk rang for Fuller. That young man entered; in spite of his loss of sleep he looked as brisk as ever.
"What about the motor cab?" asked the secret agent.
"I looked up the various stations. The nearest to Okiu's house is on Collingwood Avenue. I called them on the telephone, but could get no satisfaction. Then I paid them a visit, with better results. Okiu called a cab about midnight. Its driver's name is Freeman, and he lives on Nineteenth Street. Having gone off duty I thought he would probably be at his boarding-house; so I went there and was lucky enough to find him at home.
"Yes, he recalled the trip to Eastbury, and remembered perfectly that he had run his fare all the way to the city and to the railroad station. Then I went to the station. Again I was fortunate. A Jap answering Okiu's description had been sold two tickets at just about the time the taxi driver said he had reached the station."
"You inquired to what points the tickets were bought?"
"Yes," and here Fuller's face expressed great satisfaction. "They were for Washington."
The secret agent arose to his feet, his singular eyes shining with excitement, his nostrils dilating like those of a thoroughbred facing the barrier. After a few turns up and down the room, he said: