"She is making a condenser of herself, Doctor, and will soon break through the insulation. Sparks will be dangerous--you must secure the brush effect." He spoke quickly, and used electrical terms, that she might not understand him, but either he failed of his purpose, or the observation she immediately made was a strange coincidence. I believe she understood, for, while young women educated by their mothers are usually ignorant upon all the more masculine subjects, those who have long been their father's companions are ever prone to startle one with the most unexpected flashes of intelligence. "I am in rather a high state of tension now," she said, turning calmly to Maitland; "but when alone the expression which has been denied me here will afford relief." Maitland glanced at her quickly, and then at me, and I knew he was wondering if she had understood. Then he said: "It is getting late. I shall expect you to sleep well and to come in the morning. Please say to the servants as you go that I shall stay here all night, and that no one must enter without permission. Good-night." She held out her hand to him, but made no reply; then she fervently kissed her father's lips, and together we left the chamber of death.