"Tut, tut." Smith interrupted his survey. "Did you find it?" "I built it." "I said"—the professor spoke with increasing annoyance—"I said not to tell me stories any longer. It's important, young man, that we know just how you found this dolmen and in what condition." "It isn't a dolly—whatever you said—it's a fort and I built it and I'm not lying." The professor, in the interests of science, made a grave mistake. He seized Hugo by the arms and shook him. "Now, see here, young man, I'll have no more of your impertinent lip. Tell me just what you've done to harm this noble monument to another race, or, I swear, I'll slap you properly." The professor had no children. He tried, at the same time, another tack, which insulted Hugo further. "If you do, I'll give you a penny—to keep." Hugo wrenched himself free with an ease that startled Smith. His face was dark, almost black. He spoke slowly, as if he was trying to piece words into sense. "You—both of you—you go away from here and leave me or I'll break your two rotten old necks." Whitaker moved toward him, and Smith interceded. "We better leave him—and come back later." He was still frightened by the strength in Hugo's arms. "The child is mad. He may have hydrophobia. He might bite." The men moved away hastily. Hugo watched them climb the wall. When they reached the top, he called gently. They wheeled. And Hugo, sobbing, tears streaming from his face, leaped into his fort. Rocks vomited themselves from it—huge rocks that no man could budge. Walls toppled and crashed. The men began to move. Hugo looked up. He chose a stone that weighed more than a hundred pounds. "Hey!" he said. "I'm not a liar!" The rock arched through the air and Professors Whitaker and Smith escaped death by a scant margin. Hugo lay in the wreck of the first thing his hands had built, and wept. After a little while he sprang to his feet and chased the retreating professors. When he suddenly appeared in front of them, they were stricken dumb. "Don't tell any one about that or about me," he said. "If you do—I'll break down your house just like I broke mine. Don't even tell my family. They know it, anyhow." He leaped. Toward them—over them. The forest hid him. Whitaker wiped clammy perspiration from his brow. "What was it, Smith?"