Coming of the Gods

Never had Mars seen such men as these, for they came from black space, carrying weird weapons—to fight for a race of which they had never heard.
Ro moved cautiously. He knew the jungles of Mars well, knew the dangers, the swift death that could come to an unwary traveler. Many times he had seen fellow Martians die by the razor fangs of Gin, the swamp snake. Their clear red skin had become blotched and purple, their eyeballs popped, their faces swollen by the poison that raced through their veins. And Ro had seen the bones of luckless men vomited from the mouths of the Droo, the cannibal plants. And others there had been, some friends of his, who had become game for beasts of prey, or been swallowed by hungry, sucking pools of quicksand. No, the jungles of Mars were not to be taken casually, no matter how light in heart one was at the prospect of seeing home once more.
Ro was returning from the north. He had seen the great villages of thatched huts, the strange people who lived in these huts instead of in caves, and wore coverings on their feet and shining rings in their ears. And having quenched his curiosity about these people and their villages, he was satisfied to travel home again.
He was a man of the world now, weary of exploring and ready to settle down. He was anxious to see his family again, his father and mother and all his brothers and sisters; to sit round a fire with them at the entrance to their cave and tell of the wondrous places he'd visited. And, most of all, he wanted to see Na, graceful, dark eyed Na, whose fair face had disturbed his slumber so often, appearing in his dreams to call him home.
He breathed a sigh of relief as he reached the jungle's edge. Before him lay a broad expanse of plain. And far in the distance rose the great cliffs and the hills that were his home.
His handsome face broadened into a smile and he quickened his pace to a trot. There was no need for caution now. The dangers on the plain were few.