"What are those devils after this time?" Michaelson asked. A second later, they had the answer. Rolling across the swamps came the sound of a thunderous anti-aircraft barrage from the Idaho. The Ogrum were moving in to attack the warship, to deliver the last smashing blow against the stranded battle wagon! Like vultures circling a dying animal, they wheeled over the Idaho. "Come on!" Craig said. "I don't know what we can do to help but we will go and see." As he hurried out of the ravine he saw Guru hastily helping his mate carry the child to a higher, safer cave. Guru was hiding. The dawn man might face a flying dragon, but the Ogrum were too much for him. Craig did not blame him for hiding. He led his group hastily toward his boat. Before they reached the place where they had left the small boat a crash sounded behind them. Turning, they jerked up their guns. In this jungle wilderness, anything might be attacking them. When they saw what was following them, they dropped the muzzles of the weapons. It was Guru. Waving his club, he had come to join them. He was chattering excitedly. "He says he has put his wife and little one where they will be safe," Michaelson translated. "He wants to know if we are going to fight the Ogrum." "Tell him yes," Craig answered. "Then he says he wants to go along," the scientist interpreted. For an instant Craig stared at the dawn man. Guru was scared. His fright was obvious. Even thinking about the Ogrum scared him. But if his new-found friends were going to fight the devils of the jungle, he was going with them! "There," said Craig appreciatively, "beats a fighting heart. Come on, dawn man, you've got what it takes." With Guru to lead them and point out passages through the swamp, they made speedy time in the boat. Meanwhile, clearly audible but out of sight, the sky was filled with the thunder of guns. "The ack-ack will knock those planes out of the sky," one of the sailors said. "I wish I thought so," Craig answered. "What do you mean?" Michaelson questioned. "The Ogrum must know we have anti-aircraft defenses," the big man said uneasily. "We shot one of their planes down when they attacked our scouting flier. They know we can and will fight. If they attack us under those circumstances, it means one of two things--either they're crazy or they think they can take us in spite of our ack-ack. For all I know, they may be crazy, but I'm betting they think they can take us. Sh--" Craig listened. The anti-aircraft barrage was thinning out. The guns were not firing as furiously as they had at first. Uneasiness showing on their faces, the sailors listened. "Something's going wrong," one of them muttered. "Get moving!" Craig barked. He knew too well that something was going wrong. And, as they shoved the boat through the swamp, the guns from the ship began to sound slower and slower until at last only occasional blasts showed they were still being manned. Then the gun-fire ceased altogether.