Kutnar laughed. “Yes you both jumped like rabbits”; then he looked up at the cliffs and his face became serious. “The stone did not fall of itself,” he said, half to himself. “Someone pushed it over. I saw——”

“Someone pushed it?” inquired the Mammoth. He looked thoughtfully at the great boulder and shivered. It had been a nerve-racking experience. He hoped he would never have another like it.

“Yes, someone pushed it,” Kutnar repeated.

“Who?”

“I do not know. I saw him but an instant; then he jumped back.”

“It must have been the Cave Lion,” the Mammoth suggested. “He hates us and only a strong animal could have moved such a big rock.”

“No, it was not the Cave Lion.” Kutnar became silent as he watched the Rhinoceros who was now sniffing the stone vigorously. Finally Wulli’s nose settled on one spot and here he made a most thorough investigation. When this was concluded to his satisfaction, he raised his head and gazed triumphantly, first at one then the other of his companions.

“I know,” he squealed. “I found where he touched it. My nose never lies. I know.”

“Who was it?” the Mammoth asked.

“A hyena.”