So she went to the front door and opened it. The quick cry which she gave was one of surprise rather than of fear. In her belated visitor she had recognised citizen Chauvelin; and somehow, by a vague process of reasoning, his presence just at this moment seemed quite rational--in keeping with the unsolved mystery that was so baffling to the fair Theresia. "May I come in, citoyenne?" Chauvelin said in a whisper. "It is late, I know; but there is urgency." He was standing on the threshold, and she, a few paces away from him in the vestibule. The candle, which now burned low in its socket, was behind her. Its light touched with a weird, flickering glow the pale face of the once noted Terrorist, with its pale eyes and sharply hooked nose, which gave him the air of a gaunt bird of prey. "It is late," she murmured vaguely. "What do you want?" "Something has happened," he replied, still speaking below his breath. "Something which concerns you. And, before speaking of it to citizen Robespierre----" At the dread name Theresia stepped farther back into the vestibule. "Enter!" she said curtly. He came in, and she closed the door carefully behind him. Then she led the way into the withdrawing room and turned up the wick of the lamp under its rosy shade. She sat down and motioned to him to do the same. "What is it?" she asked. Before replying, Chauvelin's finger and thumb--thin and pointed like the talons of a vulture--went fumbling in the pocket of his waistcoat. From it he extracted a small piece of neatly folded paper. "When we left your apartment, citoyenne--my friend St. Just and I supporting poor palsied Couthon, and Robespierre following close behind us--I spied this scrap of paper, which St. Just's careless foot had just kicked to one side when he was stepping across the threshold. Some unknown hand must have insinuated it underneath the door. Now, I never despise stray bits of paper. I have had so many through my hands that proved after examination to be of paramount importance. So, whilst the others were busy with their own affairs I, unseen by them, had already stooped and picked the paper up." He paused for a moment or two, then, satisfied that he held the beautiful woman's undivided attention, he went on in his habitual, dry, urbane monotone: "Now, though I was quite sure in my own mind, citoyenne, that this billet-doux was intended for your fair hands, I felt that, as its finder, I had some sort of lien upon it----" "To the point, citizen, I pray you!" Theresia broke in harshly, tried by a show of impatience and of fatigue to hide the anxiety which had once more taken possession of her heart. "You found a letter addressed to me; you read it. As you have brought it here, I presume that you wish me to know its contents. So get on, man, get on!" she added more vehemently. "It is not at three in the morning that one cares for dalliance." By way of a reply, Chauvelin slowly unfolded the note and began to read: