"One moment, Miss Dallas. What influence has Etwald over the negress?" Isabella shuddered. "He is the possessor of the Voodoo stone," she said in a low voice. "The Voodoo stone," echoed Jen, much puzzled. "And what may that be?" "It is a small black pebble of a peculiar shape," explained the girl, "and it was brought from Africa to Barbadoes over a hundred years ago. The negroes believe that a spirit dwells in this stone, and that when it is worshiped the indwelling devil can work woe to those against whom the possessor of the stone bears malice. You can have no idea how this talisman is venerated by all the blacks; they will go miles to look on it, to adore it; they would burn down a city to possess it; to gain it they would murder a hundred human beings. Well, Dr. Etwald was in Barbadoes some years ago, and he gained possession of this Voodoo stone. He has used it while here to intimidate Dido. While he holds it she will not dare to disobey him, and all this plotting and assassination designed to bring about my marriage with Dr. Etwald, has been designed by him, and carried out by Dido, solely on account of his ownership of the Voodoo stone. You know that she calls him the 'great master!' Well--now you can guess the reason for her service worship of this man." "Yes," assented Jen, turning his sharp eyes on Isabella, "and you--do you believe in this Voodoo stone also?" "No. When I was a child I did, and I fancy that my mother also had some belief in it. Brought up among the negroes of Barbadoes both she and I imbibed the superstitions of the black race; but now we have no faith in such follies. For my part," added the girl, anxiously, "I should be glad to get rid of Dido, seeing that with Dr. Etwald and his malignant influence of the Voodoo stone, she is dragging us toward disgrace; but my mother still clings to her as an old servant, and will not let her go." "I see. And about the theft of this devil-stick?" "Oh, on the night it was stolen, I was seated on the veranda after dinner, and I saw my mother come out with Dido. They did not know I was there, as I sat in the shade. I saw Dido speak to my mother and point toward your house. Then she waved her hands before my mother's face, whereupon my mother turned and walked swiftly past where I was seated. I saw her face; it was quite white, and her eyes were open and glassy. She--" "In a word," interrupted Jen, "this black witch had hypnotized Mrs. Dallas."