They were immediately ushered in. Two clerks were seated at a great round table, apparently copying plans. There were models in the room of every form of modern warfare. A tall, thin man in the uniform of a General, was examining some new pattern of hand grenade as they entered.

'Sir,' Merrill began, addressing him apologetically, 'my friend here, Mr. Ambrose Lavendale, who was in the American Embassy for some time, has brought Mr. Daniel Hurn of Chicago to have a word with you.'

The General dropped his eyeglass and sighed.

'An invention?' he asked patiently.

'Something of the sort,' Mr. Hurn admitted briskly. 'Do I understand that you are a General in the British Army?'

'I am, sir,' General Bembridge admitted.

'Very well, then,' Mr. Hurn proceeded, 'I am here to tell you this—I can end your war. When you're through with smiling at me, you'll probably say 'Prove it.' I will prove it. There's a row of taxicabs down below. Take me outside this city of yours to where there's a garden and a field beyond. Afterwards we'll talk business. You'll want to, right enough. It'll take about an hour of your time—and I can end the war!'

There was a moment's silence. The two clerks who had been writing at the table, had turned around. General Bembridge was looking a little curiously at his unusual visitor.

'Mr. Hurn,' he said, 'I will be frank with you. The average number of visitors who present themselves here during the day with devices which will end the war, is twenty. To-day that average has been exceeded. I have already spoken to twenty-four. You make, you see, the twenty-fifth. If we were to go out in taxicabs and watch experiments with every one of them——'

'Pshaw! I'm not one of those cranks,' Mr. Hurn interrupted. 'Read this.'