That assurance was all the girl wanted, just now. She let him go his way and turned to regain the hotel. It was not quite eight o'clock, yet she felt it important to keep an eye on Kauffman and the bomb. The bomb, especially, for until Dyer took possession of the infernal contrivance he could do no mischief.
In the hotel lobby she entered a public telephone booth and called up Jim Crissey; then she went straight to her room. She could hear a low whistling in 45, which informed her that Kauffman had not yet gone out and that he was in a cheerful mood.
"I'm beginning to understand their method of work," Josie reflected. "Kauffman prepares the bombs, or brings them here under the guise of a suspender salesman; Dyer arranges for their being placed, having secured information as to where an explosion will do the most damage to the government, and Tom Linnet is used as the tool to do the actual work. Mrs. Charleworth probably assists Dyer in getting special information, and advises the gang, but doesn't take an active part in the perpetration of the crimes. Her brains and position would naturally place her at the head of the conspirators in Dorfield, although I'm pretty sure Kauffman, as the agent of the Master Spy, can dictate what they must do."
Kauffman slammed his door and locked it. He was going out. Josie opened her own door a crack to look after him. He was walking deliberately down the corridor, openly carrying in his left hand the black satchel.
To Josie this seemed the essence of effrontery. He had no intention of using the fire-escape, after all. He trusted in bravado, as so many careless criminals do. As she stealthily followed him, she observed the man stop in the office and exchange commonplaces with one or two guests whom he knew.
In reality, this was his safest plan. The black bag did not look suspicious. Presently the bomb would be turned over to Dyer and Kauffman's responsibility would then end. His very boldness was calculated to prevent suspicion.
Leaving the hotel, Kauffman walked leisurely up the lighted street. Only when he turned a corner did Josie momentarily lose sight of him. There were many pedestrians at this hour and they masked the girl's form and for a while enabled her to keep near to the man she was shadowing. The only thing that puzzled Josie was the fact that Kauffman was proceeding in a direction exactly opposite that taken by Dyer a short time before. Dyer went south and Kauffman was going north.
When the business section of Dorfield was passed, the streets became more deserted. They were not well lighted either, which favored Josie the more.
Kauffman kept steadily on, and as the houses along the way thinned, Josie decided he was headed directly for the steel works. That upset her calculations a bit, for she knew he had not seen Dyer since the latter's interview with Tom Linnet, nor had he seen Linnet; therefore he could not know that any arrangements he had previously made with them had fallen through. The German's present actions, however, indicated that he had decided to place the bomb himself, without the assistance of his fellow conspirators. Had he been warned of Linnet's defection? Had he means of communicating with Dyer unknown to Josie? Dyer was a mystery; even his wife believed he was now on his way to Washington.
Surprises, in Josie's line of work were not uncommon, and this was no time to consider whys and wherefores. The one thing she was sure of was that the bomb was in the black satchel and the black satchel in Kauffman's hand. No matter where the other conspirators might be or how they were implicated in tonight's plot, as long as she kept her eye on the bomb, she would be able to control the situation.