Craig glanced over the side of the ship. Dusk had already fallen but there was still enough light for him to see the triangular fins cutting the surface. He nodded toward the water. "Either you go with us, Voronoff," he said evenly, "Or I, personally, am going to throw you overboard." Voronoff looked like a man who did not believe his own ears. A low growl of approval came from the sailors. They remembered how they had found this man hiding in the lowest depths of the ship when they had come aboard. While their kidnapped comrades had fought, he had gone to hide. "You--you don't mean it," Voronoff whispered. "I never meant anything more," Craig answered. "We can't have any slackers here. Either you go with us or you go overboard and take your chances of swimming ashore." His voice was hard and flat and there was not the slightest trace of sympathy in it. There was no mistaking his meaning. Voronoff turned pale. He looked quickly around as though seeking a place to hide. "You've got no hole to pull in after you now," Craig said. "What is your answer." Voronoff gulped. "I'll--I'll go with you," he said. "Good," Craig said. He gave swift orders for the preparation of the attacking party. The sailors scurried to do his bidding. He was aware that Michaelson was plucking at his sleeve. "Weren't you being rather hard on him?" the scientist questioned. "Maybe," Craig answered. "The truth is, I don't like him. There is something furtive about him. He impresses me as being pretty much of a rat. Besides, we need every man we can get." "I know we do," Michaelson said slowly. "But would you honestly have thrown him overboard if he had refused to go?" Craig shrugged. "Don't ask me such questions. I don't know the answers. Maybe I would and maybe I wouldn't." "I see," the scientist smiled. "You're a hard man, Craig. All I can say is that in this situation we need a hard man and I'm glad we have you to lead us." "Thank you," Craig said. * * * * * Hours later Craig stood on the side of a mountain looking down at an incredible scene. Guru, by devious paths known only to the dawn man, had guided them here. Below them lay the city of the Ogrum. The city was located on the edge of a huge, circular bay that had apparently at some time in the remote past been the crater of a large volcano. To the east where the walls of the volcano had crumbled down was a vast swamp, a favorite feeding ground for the dinosaurs. Hundreds of the great beasts could be heard screaming and fighting in the swamp. The city itself held Craig's eyes. He had seen the Ogrum in airplanes, he had seen them use gas, both of which meant an advanced civilization, with a great knowledge of technology. He had expected to find a city bright with lights, numbering hundreds of thousands of inhabitants, with large factories, broad streets, and--since they used planes--landing fields.