Roger, his hand on the door of the Tower Chamber, stood aghast. Charles might escape unseen, there was still time. But Bonne? If her father found the girl there? And the stranger was in the Tower Room, she could not retreat thither. What was she to do? The girl's wits found the answer. She pointed to the stairs. "I will hide above," she whispered. "Do you go!" It was still of Charles she thought. "Do you go!" But the terror in her eyes--she feared her father as she feared no one else in the world--wrung the brothers' hearts. Charles hesitated. "The door at the top?" he babbled. "It is locked, I fear!" "He will not go up!" she whispered. "And while he is in the Tower Room I can escape." She vanished as she spoke, in the darkness of the narrow winding shaft--and it was time she did. The Vicomte was scarce three paces from the outer door when the two who were left sprang into the Tower Chamber. The Lieutenant was on his feet by the side of his bed. He had not gone to sleep, and he caught their alarm, he had heard the last hurried whispers, he had guessed their danger. He was not surprised when Charles, without a word, crossed the floor in a couple of bounds, flung himself recklessly over the sill of the window, clung an instant by one hand, then disappeared. A moment the shoot of ivy that grew into the chamber jerked violently, the next the door was flung wide open, and the Vicomte, a gaunt figure bearing a sword in one hand, a lanthorn in the other, stood on the threshold. The light of the lanthorn which he held above his head that he might detect what was before him, obscured his face. But the weapon and the tone of his voice proclaimed the fury of his suspicions. "Who is here?" he cried. "Who is here?" And again, as if in his rage he could frame no other words, "Who is here, I say? Speak!" Roger, on his feet, the tell-tale lanthorn in his hand, could not force a word. He stood speechless, motionless, self-convicted; and had all lain with him, all had been known. Fortunately des Ageaux took on himself to answer. "Who is here, sir?" he said in a voice a tone louder and a shade easier than was natural. "The devil, I think! For I swear no one else could climb this wall!" "What do you mean?" "And climb it," des Ageaux persisted, disregarding the question, "very nearly to this sill! I heard him below five minutes ago. And if I had not been fool enough to rouse your son and bid him light we had had him safe by now on this floor!" The Vicomte glared. The story was glib, well told, animated; but he doubted it. He knew what he had expected to find. "You lit the lanthorn?" he snarled. "When?" "Two minutes back--it might be more," des Ageaux replied. "Now he is clean gone. Clean gone, I fear," he added as he stepped into the embrasure of the window and leant forward cautiously, is if he thought a shot from below a thing not impossible. "I hear nothing, at any rate."