That very afternoon Warruk's very existence was threatened. His mother had penetrated into the papyrus a short distance the more fully to investigate a promising scent while he waited without. A spotted form, very like his mother but of much smaller size, darted from the reeds not ten yards away and stood eyeing him. Warruk did not like the other creature's looks and said so in a low growl, but instead of moving away it advanced a few steps and made an ugly grimace. How dared the impudent thing affect such boldness! The cub was accustomed to seeing much larger animals beat a hasty retreat upon the approach of himself and his mother and somehow he had gained the impression that he might be at least partly the cause of their temerity. But this stranger actually threatened him. In resentment he rushed blindly forward until the ocelot, for such it was, also charged and bowled him over with a swift stroke of its paw. He regained his feet with difficulty and screaming with pain and fright darted back towards the reeds. Suma heard the cry of distress and charged out of the dense cover with a snarl, but the ocelot had anticipated her coming and in a graceful leap to one side disappeared in the papyrus. After that Warruk was content to leave the larger creatures to his mother; but the smaller ones such as the cavies and opossums he dealt with mercilessly and swiftly; in fact, Suma urged him to such a course and often watched from some nearby point of vantage while he conducted the stalk and launched the attack. Then she walked up to him and rewarded dexterity with deep purrs and penalized failure with cutting indifference or unmistakable chidings. Life in the low country for the two wanderers was simply a succession of pleasant days and nights with just enough adventure to make it interesting. They never lingered long in one place and by gradual stages their journeying took them further and further away from the forested foothills and nearer to the great arteries that poured their waters into the system of the mighty Amazon. Food became more abundant as the days passed and Warruk learned the lessons of life with Suma, his mother, and instinct, as instructors. As often as not, however, some particular bit of knowledge was acquired at personal risk; and this latter was accentuated by the fact that the cub showed a headstrong disposition to do things his own way, often impatient of his mother's more cautious maneuvering.