"He left town last night," replied McNorton.
"Can you get in touch with him?"
The other shook his head.
"I suppose you are sending on a copy of this communication to the Cabinet," he said—"it may be rather serious. Whatever the scheme is, it is being worked in London, and van Heerden is the chief operator."
He took down his hat and went out in search of Kitson, whom he found in the lobby of the hotel. James Kitson came toward him eagerly.
"Have you news of Beale?"
"He was at Kingston this morning," said McNorton, "with Parson Homo, but he had left. I was on the 'phone to the inspector at Kingston, who did not know very much and could give me no very definite news as to whether Beale had made his discovery. He interviewed the tramp early this morning, but apparently extracted very little that was helpful. As a matter of fact, I came to you to ask if he had got in touch with you."
Kitson shook his head.
"I want to see him about his Green Rust scare—Beale has gone single-handed into this matter," said the superintendent, shaking his head, "and he has played the lone game a little too long."
"Is it very serious?"
"It may be an international matter," replied McNorton gravely, "all that we know at present is this. A big plot is on foot to tamper with the food supplies of the world and the chief plotter is van Heerden. Beale knows more about the matter than any of us, but he only gives us occasional glimpses of the real situation. I have been digging out van Heerden's record without, however, finding anything very incriminating. Up to a point he seems to have been a model citizen, though his associates were not always of the best. He has been seen in the company of at least three people with a bad history. Milsom, a doctor, convicted of murder in the 'nineties; Bridgers, an American chemist with two convictions for illicit trading in drugs; Gregory—who seems to be his factotum and general assistant, convicted in Manchester for saccharine
