On the Captain's right, and at some little distance from him, an Indian was moving stealthily toward the Fort. On his left, and still farther away from him, another was doing the same thing. The Captain turned to the right, and instantly the Indian on that side dropped full length on the grass, while the other moved more quickly toward the Fort. When the Captain turned to the left the manoeuvre was repeated, but it was some time before she grasped the horrid significance of their actions. When she perceived that both Indians were endeavouring to get between the Captain and the Fort, the blood froze in her veins. The parade-ground was deserted, and the long, droning notes of the locusts were the only sound she heard. She screamed, but the Captain did not turn, and no one seemed to hear. At the gate the sentinel leaned on his musket, unconscious of danger. She screamed again, but could not hear her own voice. Then the springs of action threw off their lethargy. She dashed out of the house and flew over the parade-ground, with the taste of hot blood in her mouth and a heavy weight upon her breast. Trembling in every nerve, she climbed the ladder that led to the blockhouse, and entered, flushed and gasping. She was dimly conscious that she was not alone, but there was no time to waste. Praying that she might not be too late, she seized a loaded musket, aimed through the porthole, and fired. It seemed an age before she saw the Captain through the smoke, running back to the Fort, and the two Indians making for the woods. "Thank God!" she breathed, "thank God!" Then she turned--and faced her husband, his face so ghastly that she scarcely knew him. "Ralph!" she whispered, hoarsely. "Ralph!" His eyes refused to meet hers, and a tumult surged in her brain. Detached pictures of her childhood, confused and unrelated memories, and a thousand trivial things passed swiftly before her mental vision. Then, as if by magic, there was a clearing--all things gave way to the horrible knowledge that he had seen--and had failed to warn. "Ralph! Ralph! My husband!" The blood beat hard in her pulses and her lips curled in scorn. Then her unspeakable contempt melted to pity, as she saw how the man was suffering. Like an avenging angel she stood before him, confronting him mutely with his sin. Captain Franklin came into the Fort. As the Lieutenant saw him safe and sound, he groaned deeply, like one whose suspense is ended. Then he raised his eyes to the face of his wife. "I thank you, Katherine," he said, gravely; "you have saved me from myself." CHAPTER XX RECONCILIATION