"Unchivalrous?" she retorted with a pathetic sigh of weariness. "I suppose, here in England, it would be called an act of patriotism or self-preservation . . . like fighting an enemy . . . or denouncing a spy——"

She paused for a moment or two, and as he once more took refuge in silence, she resumed with sudden, moving passion:

"So it is to be a betrayal after all! The selling of an unfortunate woman to her bitterest enemy! Oh, what wrong have I ever done you, that you should persecute me thus?"

"Persecute you?" he exclaimed. "Pardi, Madame; but this is a subtle joke which by your leave my dull wits are unable to fathom."

"It is no joke, milor," she rejoined earnestly. "Will you let me explain? For indeed it seems to me that we are at cross purposes, you and I."

She came to a halt, and he perforce had to do likewise. They had come almost to the end of the little lane; a few yards farther on it debouched on the main road. Beyond that, the lights of Dover Town and the Harbour lights glinted in the still, starry night. Behind them the lane, sunk between grassy slopes and overhung by old elms of fantastic shapes, appeared dark and mysterious. But here, where they stood, the moon shed its full radiance on the broad highway, the clump of copper beeches over on the left, that tiny cottage with its thatched roof nestling at the foot of the cliff; and far away, on the picturesque mass of Dover Castle, the church and towers. Every bit of fencing, every tiny twig in the hawthorn hedges, stood out clear cut, sharp like metal in the cold, searching light. Theresia—divinely slender and divinely tall, graceful despite the rough masculine clothes which she wore—stood boldly in the full light; the tendrils of her jet black hair were gently stirred by an imperceptible breeze, her eyes, dark and luminous, were fixed upwards at the man whom she had set out to subjugate.

"That boy," she went on quite gently, "Bertrand Moncrif, was just a young fool. But I liked him, and I could see the abyss to which his folly was tending. There was never anything but friendship between us; but I knew that sooner or later he would run his head into a noose, and then what good would his pasty-faced sweetheart have been to him? Whilst I—I had friends, influence—quoi? And I liked the boy; I was sorry for him. Then the catastrophe came . . . the other night. There was what those ferocious beasts over in Paris were pleased to call a Fraternal Supper. Bertrand Moncrif was there. Like a young fool, he started to vilify Robespierre—Robespierre, who is the idol of France! There!—in the very midst of the crowd! They would have torn him limb from limb, it seems. I don't know just what happened, for I wasn't there; but he came to my apartment—at midnight—dishevelled—his clothes torn—more dead than alive. I gave him shelter; I tended him. Yes, I!—even whilst Robespierre and his friends were in my house, and I risked my life every moment that Bertrand was under my roof! Chauvelin suspected something then. Oh, I knew it! Those awful pale, deep-set eyes of his seemed to be searching my soul all the time! At which precise moment you came and took Bertrand away, I know not. But Chauvelin knew. He saw—he saw, I tell you! He had not been with us the whole time, but in and out of the apartment on some pretext or other. Then, after the others had left, he came back, accused me of having harboured not only Bertrand, but the Scarlet Pimpernel himself!—swore that I was in league with the English spies and had arranged with them to smuggle my lover out of my house. Then he went away. He did not threaten. You know him as well as I do. Threatening is not his way. But from his look I knew that I was doomed. Luckily I had François. We packed up my few belongings then and there. I left my woman Pepita in charge, and I fled. As for the rest, I swear to you that it all happened just as I told it to milady. You say you do not believe me. Very well! Will you then take me away from this sheltered land, which I have reached after terrible sufferings? Will you send me back to France, and drive me to the arms of a man who but waits to throw me into the tumbril with the next batch of victims for the guillotine? You have the power to do it, of course. You are in England; you are rich, influential, a power in your own country; whilst I am an alien, a political enemy, a refugee, penniless and friendless. You can do with me what you will, of course. But if you do that, milor, my blood will stain your hands for ever; and all the good you and your League have ever done in the cause of humanity will be wiped out by this execrable crime."

She spoke very quietly and with soul-moving earnestness. She was also exquisitely beautiful. Sir Percy Blakeney had been more than human if he had been proof against such an appeal, made by such perfect lips. Nature itself spoke up for Theresia: the softness and stillness of the night; the starlit sky and the light of the moon; the scent of wood violets and of wet earth, and the patter of tiny, mysterious feet in the hedgerows. And the man whose whole life was consecrated to the relief of suffering humanity and whose ears were for ever strained to hear the call of the weak and of the innocent—he would far, far sooner have believed that this beautiful woman was speaking the truth, rather than allow his instinct of suspicion, his keen sense of what was untrustworthy and dangerous, to steel his heart against her appeal.

But whatever his thoughts might be, when she paused, wearied and shaken with sobs which she vainly tried to suppress, he spoke to her quite gently.

"Believe me, dear lady," he said, "that I had no thought of wronging you when I owned to disbelieving your story. I have seen so many strange things in the course of my chequered career that, in verity, I ought to know by now how unbelievable truth often appears."