'Who cares about that!' Lavendale exclaimed, a little curtly. 'What can we do, Major Elwell? I dare say you know as much as I do, and more. Miss de Freyne has been very successful during the last few months, and there is no doubt they'd give anything they could to get hold of her on the other side. But in England—surely there can't be any organization over here strong enough for actual mischief!'

'Scarcely,' Major Elwell agreed. 'Scarcely. 'H—double O—K,' he went on meditatively. 'You see, there are about fifty places in the United Kingdom beginning like that.'

Lavendale felt his courage slipping away. There was something curiously unimpressive in the carefully-dressed, imperturbable Englishman, who was occupied now in polishing his eyeglass.

'Isn't there anything we can be doing instead of sitting here talking?' he asked impatiently.

'Always a mistake,' Major Elwell declared, 'to do things in a hurry. Have a cigarette,' he went on, offering his case. 'I think I'll stroll out and talk with a friend over this little matter.'

'Isn't there a thing I can do?' Lavendale persisted.

'Well,' Major Elwell said thoughtfully, 'you spoke of an invitation to visit your friend Mr. Anthony Silburn at Hookam Court. Why not motor down there to-morrow? It's one of the places in the country that your call might have come from, at any rate.'

A derisive reply quivered upon Lavendale's lips. Then, for some reason or other, he changed his mind and remained silent. Major Elwell, without any appearance of hurrying him, was holding the door open.

'All right,' Lavendale agreed, 'I'll motor down there to-morrow.'

*****