The mulatto looked at the disordered pile and made for the ladder. Marston did not stop him, although he was angry, and kneeling down began to pick up the articles. The bottles were strong and had not broken, and in a minute or two he replaced them and the other things in the box. Then he went up the ladder and looked out on deck. A lamp hung on the forestay as a beacon for the boats and one could see the sweep of planks and line of the rail. There was nobody about and nothing broke the silence. Beyond the feeble glimmer of the lamp it was very dark, but the night was calm and Marston knew the splash of a paddle would carry far. He crossed the deck and looked over the rail. The water caught a faint reflection and he saw muddy foam and weed float past. The tide was rising and running up the lagoon. One could hardly wade to land and it was obviously impossible to do so without making a noise. Yet his visitor had vanished and he had not heard him go. Marston remembered stories about the Ghost Leopards he had heard in Africa, and laughed, but the laugh was forced. He went back to the cabin and, shutting the hatch, examined the medicine chest. He did not know if he was surprised to find two articles had gone; one was a bottle of laudanum and the other a packet of new and powerful drugs. The book warned one to be careful about their use. Marston lighted a cigarette and pondered. He was not certain the bottle and packet were in the box when he got it down, although he thought they were; he had sometimes taken things out when he dosed the crew and he had used laudanum. Moreover, it looked impossible that the mulatto had picked them up. So far as Marston remembered, he did stoop down or stop. Then, supposing he had taken the stuff, it was hard to see why a man who was half a savage should steal laudanum and the other drug. If Obeah was like West African Ju-Ju, there were no doubt men who used poison to support their claim to magical power; but strange and virulent poisons could be extracted from tropical plants. Besides the fellow had given Marston a cure for fever. Perhaps he was making a dangerous experiment, but his curiosity conquered his caution and he resolved to try the stuff. Going to the galley, he found some hot water, and as he came back noted that one could see into the cabin through the half-opened skylight. He wondered whether the mulatto had looked down and noted the medicine chest. The brown powder melted, and he swallowed the draught. Then he got into his bunk, and blowing out the lamp, presently went to sleep. CHAPTER IX DON FELIX'S REVOLT