General waved them away. Merrill glanced curiously at the American as the three men walked down the corridor.
'Those letters did the trick,' he remarked. 'Forgive me if I hurry, Lavendale. Don't let your friend be a minute late to-morrow morning or he'll lose his chance.'
'I'll see to that,' Mr. Hurn promised. 'Guess I can hire some sort of an automobile to take me out there. Good morning, Captain Merrill,' he added, by way of parting salute, holding out his curiously stained hand. 'I am much obliged to you for your help, and you can sleep to-night feeling you've done more than any man in this great building to save your country.'
Merrill winked at Lavendale as he disappeared within his room. The latter, with the inventor by his side, stepped out into the street.
'About going down there to-morrow morning——' he began.
'Young man,' Mr. Hurn interrupted impressively, 'you've done your best for me and it's only right you should have your reward. You may accompany me to this place, wherever it is.'
Lavendale laughed softly, a laugh which his companion absolutely failed to understand.
'All right,' he agreed, 'I'll take you down in my car. I'll be at the hotel at nine o'clock.'
'At five minutes to ten, if the General is punctual,' Mr. Hurn promised, 'you shall see the most wonderful sight you have ever witnessed in your life.'
II
Punctually at nine o'clock on the following morning, Lavendale brought his car to a standstill before the front door of the Milan Hotel. Mr. Hurn, looking, if possible, shabbier and more insignificant than ever, was waiting under the portico. He clambered at once to the seat by Lavendale's side.
'Haven't you any apparatus to bring, or anything?' the latter inquired.
Mr. Hurn smiled.
'Not a darned thing!'
Lavendale was puzzled.
'You mean you're ready to start with your experiment, just as you are, like this?'
'Sure!' the little man answered, 'and you'd better get her going.'
They started off in silence. Once more Lavendale, as he glanced at the shabby little object by his side, began to lose confidence. As they swung round into Golder's Green he spoke again.
'What sort of a show are you going to give us?' he asked.
Mr. Hurn glanced at his watch.
'You'll know inside of an hour,' he replied.
Lavendale frowned. His protégé's appearance that morning was certainly not prepossessing. His collar showed distinct traces of its vicissitudes upon the previous day. His ugly, discoloured hands were ungloved; his boots were of some dull, indescribable material which seemed to have escaped the attentions of the valet; his flannel shirt was of the style and pattern displayed in Strand establishments which cater for the unæsthetic. He had discarded his hat for a black cloth cap and he had developed a habit of muttering to himself. Lavendale pressed the accelerator of his car and increased its pace.
'I suppose I've made a fool of myself,' he muttered.
They reached the open country and drew up in due time before the lodge gates of what seemed to be a very large estate. There was no sign as yet of the General. Mr. Hurn descended briskly and at once embarked upon a survey of the neighbourhood. Lavendale lit a cigarette and paused to watch the approach of a great limousine car rushing up the hill. It passed them in a cloud of dust—he stood staring after it. Notwithstanding the closed windows, he had caught a glimpse of a face, of eyes gazing with strained intentness out on to his side of the road—the face of a woman convulsed with urgency—the woman who had played such queer havoc with his thoughts. Almost at the same moment there was a rasping voice in his ear.
'Say, Mr. Lavendale, there's just one thing I ought to have warned you people about, you don't want any spectators to this show. There ain't no one on this earth has seen what you are going to see.'
Lavendale was conscious of a queer flash of premonition. They three—the girl, the crazy little American and he himself—at this critical moment seemed to have come once more together. What was the girl doing out here? Could her appearance really be fortuitous? The little man's warning became automatically associated with this unexpected glimpse of her. Then, with a returning impulse of sanity, Lavendale brushed his suspicions on one side.
'There'll only be farm labourers within sight, anyway,' he remarked. 'You see, no one could have known that we were coming here.'
'That may be so or it mayn't,' Mr. Hurn replied dryly. 'Anyway, I guess this is the boss coming along.'
An open touring car, driven by a man in khaki, drew up at the lodge gate. General Bembridge descended briskly and came towards them, followed by Captain Merrill.
'Glad to see you are punctual, Mr. Hurn,' he said. 'Now, if you please, I am at your disposal for a quarter of an hour. What is it that you have brought to show me?'
'That's all right, General,' Mr. Hurn replied affably. 'You don't need to worry. I've been taking my fixings round here. Just step this way.'
He shambled along across the turf. The others followed him, the General walking by Lavendale's side.
'Hasn't your friend brought any apparatus to show us?' he inquired irritably. 'What's he going to do?'
'Heaven knows, sir!' Lavendale replied. 'He has told me nothing. If it weren't for those letters he showed you, I should have thought he was a lunatic.'
Mr. Hurn assembled the little party about twenty-five yards ahead of a fringe of trees which bordered the road-side and terminated after a slight break in a compact little spinney. He turned to Captain Merrill.
'Say, young man,' he suggested, 'you just hop round the other side and make sure there's no one about.'
Merrill, in obedience to a glance from the General, hurried off. The latter turned towards Mr. Hurn.
'You are leaving us very much in the dark, sir, he remarked. 'What is it that you propose to attempt?'
'I propose to accomplish on a small scale,' Mr. Hurn said grandiloquently, 'a work of destruction which you can repeat upon any scale you choose. See here.'
With the utmost solemnity he drew from his pocket a schoolboy's ordinary catapult and a pill-box. From the latter he selected a pellet a little smaller than a marble. He fitted it carefully into the back of the catapult. Captain Merrill, who had completed his tour of the spinney, returned.
'There is no one about, sir,' he announced.
Mr. Hurn had suddenly the air of a man who attempts great deeds. His attitude, as he stepped forward, was almost theatrical. The General had become very stern and was obviously annoyed. Lavendale's heart was sinking fast. He was already trying to think out some form of apology for his share in what he felt had developed into a ridiculous fiasco. Nevertheless, their eyes were all riveted upon the strange little figure a few feet in front of them. Slowly he drew back the elastic of the catapult and discharged the pellet. It struck a tree inside the spinney
