it had got talked about. He'd be a bad enemy: and Mademoiselle seems to think that he is a very bitter and determined enemy. Apparently she doesn't know how much he has found out, or whether he has actually found out anything at all, or merely guesses, and 'bluffs.' But one thing is unfortunately certain, I believe. Every boat and every train between London and Paris will be watched more closely than usual for the next day or two. Any known or suspected agent wouldn't get through unchallenged. But I can see no reason why you should not."

"Nor I," answered Ivor, laughing a little. "I think I could make some trouble for anyone who tried to stop me."

"Caution above all! Remember you're in training for a diplomatic career, what? If you should lose the packet I'm going to give you, I prophesy that in twenty-four hours the world would be empty of Maxine de Renzie: for the circumstances surrounding her in this transaction are peculiar, the most peculiar I've ever been entangled in, perhaps, in rather a varied experience; and they intimately concern her fiancé, the Vicomte Raoul du Laurier—"

"Raoul du Laurier!" exclaimed Ivor. "So she's engaged to marry him!"

"Yes. Do you know him?"

"I have friends who do. He's in the French Foreign Office, though they say he's more at home in the hunting field, or writing plays—"

"Which don't get produced. Quite so. But they will get produced some day, for I believe he's an extremely clever fellow in his way—in everything except the diplomatic 'trade' which his father would have him take up, and got him into, through Heaven knows what influence. No; Du Laurier's no fool, and is said to be a fine sportsman, as well as almost absurdly good-looking. Mademoiselle Maxine has plenty of excuse for her infatuation—for I assure you it's nothing less. She'd jump into the fire for this young man, and grill with a Joan of Arc smile on her face."

This would have been pleasant hearing for Ivor, if he'd ever been really in love with Maxine; but I was obliged to admit to myself that he hadn't, for he didn't seem to care in the least. On the contrary, he grew a little more cheerful.

"I can see that du Laurier's being in the French Foreign Office might make it rather awkward for Miss de Renzie if she—if she's been rather too helpful to us," he said.

"Exactly. And thereby hangs a tale—a sensational and even romantic tale almost complicated enough for the plot of a novel. When you meet Mademoiselle to-morrow afternoon or evening, if she cares to take you into her confidence, in reward for your services, in regard to some private interests of her own which have got themselves wildly mixed up with the gravest political matters, she's at liberty to do so as far as I'm concerned, for you are to be trusted, and deserve to be trusted. You may say that to her from me, if the occasion arises. I hope with all my heart that everything may go smoothly. If not—the Entente Cordiale may burst like a bomb. I—who have made myself responsible in the matter, with the clear understanding that England will deny me if the scheme's a failure—shall be shattered by a flying fragment. The favourite actress of Paris will be asphyxiated by the poisonous fumes; and you, though I hope no worse harm may come to you, will mourn for the misfortunes of others. Your responsibility will be such that it will be almost as if you carried the destructive bomb itself, until you get the packet into the hands of Maxine de Renzie." "Good heavens, I shall be glad when she has it!" said Ivor.

"You can't be gladder than she—or I. And here it is," replied the Foreign Secretary. "I consider it great luck to have found such a messenger, at a house I could enter without being suspected of any motive more subtle than a wish to eat a good supper, or to meet some of the prettiest women in London."

I would have given a great deal to see what he was giving Ivor to take to Maxine, and I was half tempted to lift myself up and peep at the two from behind the lounge, but I could tell from their voices that they were standing quite near, and it would have been too dangerous. The Foreign Secretary, who is rather a nervous man, and fastidious about a woman's looks, never could bear me: and I believe he would have thought it almost as justifiable as drowning an ugly kitten, to choke me if he knew I'd overheard his secrets.

However, Ivor's next words gave me some inkling of what I wished to know. "It's importance evidently doesn't consist in bulk," he said lightly. "I can easily carry the case in my breast pocket."

"Pray put it there at once, and guard it as you would guard the life and honour of a woman," said the Foreign Secretary solemnly. "Now, I, must go and look for my wife. It's better that you and I shouldn't be seen together. One never knows who may have got in among the guests at a crush like this. I will go out at one door, and when you've waited for a few minutes, you can go, by way of another."

A moment later there was silence in the room, and I knew that Ivor was alone. What if I spoke, and startled him? All that is impish in me longed to see how his face would look; but there was too much at stake. Not only would I hate to have him scorn me for an eavesdropper, but I had already built up a great plan for the use I could make of what I had overheard.

CHAPTER III

LISA MAKES MISCHIEF

When Ivor was safely out of the room, my first thought was to escape from behind the lounge, and get upstairs to my own quarters. But just as I had sat up, very cramped and wretched, with one foot and one arm asleep, Lord Mountstuart came in again, and down I had to duck.

He had brought a friend, who was as mad about old books and first editions, as he; a stuffy, elderly thing, who had never seen Lord Mountstuart's treasures before. As both were perfectly daft on the subject, they must have kept me lying there an hour, while they fussed about from one glass-protected book-case to another, murmuring admiration of Caxtons, or discussing the value of a Mazarin Bible, with their noses in a lot of old volumes which ought to have been eaten up by moths long ago. As for me, I should have been delighted to set fire to the whole lot.

At last Lord Mountstuart (whom I've nicknamed "Stewey") remembered that there was a ball going on, and that he was the host. So he and the other duffer pottered away, leaving the coast clear and the door wide open. It was just my luck (which is always bad and always has been) that a pair of flirting idiots, for whom the conservatory, or our "den," or the stairs, wasn't secluded enough, must needs be prying about and spy that open door before I had conquered my cramps and got up from behind the sofa.

The dim light commended itself to their silliness, and after hesitating a minute, the girl—whoever she was—allowed herself to be drawn into a room where she had no business to be. Then, to make bad worse, they selected the lounge to sit upon, and I had to lie closely wedged against the wall, with "pins and needles" pricking all over my cramped body, while some man I didn't know proposed and was accepted by some girl I shall probably never see.

They continued to sit, making a tremendous fuss about each other, until voices were "heard off," as they say in the directions for theatricals, whereupon they sprang up and hurried out like "guilty things upon a fearful summons."

By that time I was more dead than alive, but I did manage to crawl out of my prison, and creep up to my room by a back stairway which the servants use. But it was very late now, and people were going, even the young ones who love dancing. As soon as I was able, I scuttled out of my ball dress and into a dressing gown. Also I undid my hair, which is my one beauty, and let it hang over my shoulders, streaming down in front on each side, so that nobody would know one shoulder is higher than the other. It