The pictures interested him as well. The Aarthmen owned several worlds: cloud-swathed, green-clad continents and vurthless broad seas, and a dying red world of deserts. And their sun was a tiny red ball without the least sign of an outer solar ring. How much more beautiful was Osar's generous ringed luminary, thought the Wetlander. So it was that they spent day after day in the peaceful valley of the Aarthmen, cementing the bonds of friendship that Hardan hoped would release the forgotten knowledge of Aarth for both races. Almost had he forgotten the toiling caravan of huge six-wheeled wagons that even now must be traveling through the waterless desolation of the passes of the Blue Malsalm Range to the north. "You should be told, Hardan," Kern Rensom said, as the mounted messenger rode off down the broad paved street, "that the wagon train you guided has halted less than a day's journey to the north. And the evil-brained sarif, Nitka Porn, has laid a trap for the small party of soldiers who pursue them." Hardan's eyes flashed. It was not enough that Nitka Porn had taken over control of the train. Now he must slaughter more Wetlanders instead of attempting escape. He realized that he must kill the huge-bodied sarif before he could cause any more bloodshed and misery. Perhaps there was yet time to rescue the doomed warriors. "One of our hunters crept close enough to the wagon train to catch the thoughts of Nitka Porn," the little man was saying. "The attack is to be late today or in the morning." "Kern Rensom!" cried Hardan, "could you get me a guide and maars to take me to the soldiers?" "I can do better," grinned the Aarthman. "I can come along. And bring a score of warriors as well." Hardan took his sword-belts down from their pegs and buckled them on. He looked to his bow and replaced the somewhat frayed string. Then he strode out the door to where the maars they had ridden earlier in the morning were kept. And with him walked the little Aarthman, clean-shaven now and dandified in embroidered blouse and wide-bottomed trousers of woven blue fabric. He too was hooking on his harness of knives, arrow quiver, and throwing club. They mounted, pulling their desert robes from behind the saddles--this last was an Aarth invention that shielded them from sunglare and stinging sand flurries--and rode toward the poorer section of Smeth City where hunters and warriors lived. Nor were they long in recruiting a force of thirty mounted men and leaving the city behind. Yet as they reached the great gate in the towering outer wall, the wall that barred the lower crater to any but Aarthmen, a wide-hatted rider with desert robes high about his face, awaited them. And as they filed through the narrow slot the sliding gate-slab permitted this rider to join the party. Hardan rode close to the stranger and uncovered the shielded features. He shrugged and shouted across to Kern Rensom. "I might have known," he laughed. "It is Ylda."