To arouse the jealousy of Balkis had he got this letter written, and had put it to a use which Fairy Fan never expected, or she certainly would not have written it. Eustace guessed that a semi-civilised creature like Balkis would be insanely jealous, and that if she found the man she loved adored another woman would make short work of that woman. Had Balkis been on the side of the Berrys, Jarman hoped to detach her from their interests by means of this letter. But Balkis apparently cared neither one way nor the other. Still, to make her talk more freely, it was worth while trying the experiment. The ruse was successful, for the great black creature after reading the letter went fairly mad. "She shall die--she shall die!" was her cry, and again she stamped, crushing up the letter in her strong fingers. If Fairy Fan now came within reach of those fingers Eustace thought she would have short shrift. But he was not sorry. The crimes of Mrs. Anchor needed some such punishment. Suddenly Balkis thrust the letter into her pocket, and seizing Jarman's hand kissed it savagely. "You are my friend. I swear by you! I will do what you want," she said hoarsely. "Then tell me who killed Starth." "I cannot--unless it was Lancaster. Tamaroo says no; but, then, he is the friend of Lancaster." "How did you meet Tamaroo?" "I knew him in San Francisco. He also is Obi-worshipper. He knew I was here in London, and when he came he visited me. I told him all I knew about Captain Berry." "Did Tamaroo come after Starth died?" "No. A week before he died." Eustace thought. Tamaroo said that he arrived after the death, and in that way explained his inability to find Frank. But it seemed that he was really in town beforehand. "Did Tamaroo know Starth?" "No," said Balkis. She paused and looked questioningly. "You heard of the Scarlet Bat?" she asked. "Yes. Tamaroo told me all about it." "Ah!" Balkis drew a long breath. "Me also he told, and how Berry wished for the money. He learnt that Berry came here, and asked questions. I told him all. When he heard that Berry knew my Walter he said he would go to Walter to hear more of him. I told him the house, and sent that ribbon with Tamaroo so that Walter might know he came from me." "Oh, then Tamaroo was in the house when the murder was committed?" Balkis looked queerly at him. "Tamaroo did not kill my Walter," she said. "If he had, I should have killed him." And, although Jarman urged her to say more, she declined to do so. Then he thought of the likeness remarked upon by Jenny between Mr. Darrel and Balkis. "Do you know a man called Darrel?" "I do. He comes from Jamaica. Why should I tell you a lie. He is a cousin of mine." "I thought so," said Jarman, drawing a deep breath. "Yes. He has our blood in him. He comes here at times, but he never calls me cousin. He thinks himself white, but he has our blood." "Well, Balkis, you know now how Miss Berry has treated you."