"Arthur was my elder brother," said Evan amiably. "Consequently, being English, he had all the money in the family. I do not like West Africa. If I disposed of Arthur, I could go back to England and live with some comfort. I thought of shooting him and calling it an accident, but people would talk, you know. When he came here with his tale of being followed by a gorilla, I saw the possibilities. When I heard you people were coming up, I saw I would have witnesses. My idea was to convince you of the presence of a gorilla, break Arthur's neck precisely as I did this afternoon, and return to England. I rather thought I would be able to comfort Alicia, in time." Alicia shuddered. Evan grinned at her. "I shall comfort you, Alicia, but presently. My people will return, Murray and your estimable chaperon will be disposed of, and you and I will escape precariously to Ticao, telling the tale of hairbreadth escapes during the uprising of my natives and during the trip." "Never!" said Alicia desperately. "Oh, yes." Evan was polite, but there was evil determination in his tone. "You never cared much for Arthur, and I more than suspect you're in love with Murray. You'll do as I say for his sake." There was mute interrogation in my expression. "Not to save your life, of course, Murray," Evan hastened to assure me. "I really can't allow you to spread tales of what happened up here. She'll be pleasant to make sure that you depart this life, er--comfortably." Alicia looked at me in despair. Evan glanced out the window. "Not time for me to start off yet," he remarked. "They'll have to go down and worship me when I turn up in this little fixing." He indicated the gorilla-head mask in his hand. "Is there anything that isn't clear to you?" "I don't understand anything," I said. "I'll begin at the beginning, in your own fashion. Let's see. Biheta. You remember you were here the night she was installed in the casa? One of my servants had been insolent. I sent word to the village that Biheta was to be sent here to take the other's place. She was frightened, and the juju ceremony you saw was for the purpose of heartening her for the time she would spend in proximity to my godlike person. When the other servants left, by my orders, she was too stupid to go with them. She was perpetually frightened, anyway. You see, she saw me dispose of the servant that had been insolent. Jujutsu is useful. I'll show you how to break a neck." He started to rise, then sank back in his chair. "Come to think of it, I need you to convince Alicia that she had better do as I tell her. You will depart this life to-morrow. As I was saying, Biheta stayed behind when she should have cleared out with the others. So, in the middle of the night, while on guard, I went into her room, wearing my mask. I made a noise, she woke, saw me--and that was the end of that. The photograph of the retina of her eye showed the face of this mask. Rather clever idea, don't you think?"