"Come, let us go there." As he spoke, Fleming Stone left the room, and without waiting for the hurrying Hardy, ran downstairs, and was in the hall, getting into his great coat when the other joined him. So great was Hardy's faith in his superior, and so anxious was he to watch his methods, that he donned his own overcoat without a word, and the two set forth. It was only a short walk, and on the way, Stone looked about in every direction, asking innumerable questions about the neighboring houses and their occupants. After passing several large and handsome estates, they came to a district of less elaborate homes, and after that to a section of decidedly poorer residences. At one of these, Stone stared hard, but not till they were well past it, did he inquire who lived there. "Dunno," replied Hardy; "it's a sort of boarding-house, I think, for the lower classes." "Is it?" said Stone, and they went on. At the sanatorium they found Estelle. She was not hysterical now, but was in a sort of apathetic mood, and listless of manner. Stone spoke to her with polite address, and a manner distinctly reassuring. "It will be much better for you, Estelle," he said, pleasantly, "if you will speak the truth. Better for you, and better for----you know whom." His significant tone roused her, "I don't know who you mean," she exclaimed. "Oh, yes, you do! somebody whose name begins with H, or B, or S." "I don't know any one beginning with S," and Estelle frowned defiantly. "But some one with----" Stone leaned forward, and in the tense pause that followed, Estelle's lips half formed a silent 'B'. "Yes," went on Stone, as if he had not paused. "If you will tell the whole truth, it will be better for Bates in the long run." Estelle began to tremble. "What do you know?" she cried out, and showed signs of hysteria. "I know a great deal," said Stone, gravely, "and, unless assisted by what you know, my knowledge will bring trouble to your friend." "What do you want me to tell you?" and Estelle, now on her guard, spoke slowly and clearly, but her fingers were nervously twining themselves in and out of her crumpled handkerchief. "Only your own individual part in the proceedings. The rest we will learn from Bates himself." "How do you know it was Bates?" "We have learned much since you left Garden Steps," and now Stone spoke a little more sternly. Hardy looked at him in wonder. Who was this Bates, clearly implicated in the murder, and known to Estelle? "You see, Mr. Haviland saw you go down to open the window for him to come in," Stone went on, as casually as if he were retailing innocent gossip. "Did you go down again and close it?" "I haven't said I opened it yet," and Estelle flashed an irate glance at her questioner. "No, but you will do so when you realize how necessary it is. I tell you truly, when I say that only your honesty now can save your friend Bates from the electric chair." Estelle shuddered and began to cry violently.