Instantly the thing was limping. A beetle does not use its legs like four-legged creatures. A beetle moving shifts the two end legs on one side and the central leg on the other, so that it always stands on an adjustable tripod of limbs. It cannot adjust readily to crippling. A dog snatched at a spiny lower leg and crunched,--and darted away. The machine-like monster uttered a formless, deep-bass cry and was spurred to unbelievable fierceness. The fight became a thing of furious movement and joyous uproar, with Burl striking once at a multiple eye so the pain would deflect it from a charge at Saya, and Saya again deflecting it with her cloak and once breathlessly trying to strike it with her shorter spear. They struck it again, and a third time, and it sank horribly to the ground, all three legs on one side crippled. The remaining three thrust and thrust and struggled senselessly,--and suddenly it was on its back, still striking its gigantic jaws frantically in the hope of murder. But then Burl struck home between two armor-plates where a ganglion was almost exposed. The blow killed it instantly. Burl and Saya were smiling at each other when there was a monstrous sound of crashing trees. They whirled. The dogs pricked up their ears. One of them barked defiantly. Something huge--truly huge!--had settled to the ground a bare two hundred yards away. It was metal, and there were ports in its sides, and it was quite beyond imagining. Because, of course, no space-ship had landed on this planet in forty-odd human generations. A port opened as they stared at it. Men came out. Burl and Saya were barbarically attired, but they had been fighting some sort of local monster--the men on the space-ship could not quite grasp what they had seen--and they had been helped by dogs. Human beings and dogs, together, always mean some sort of civilization. The dogs gave an impression of a very high level indeed. They trotted confidently over to the ship, and they sniffed cautiously at the men who had landed. Then their behavior was admirable. They greeted the new-come men with the self-confident cordiality of dogs who are on the best possible terms with human beings,--and there was no question of any suspicion by anybody. The attitude of a man toward a dog is a perfectly valid indication of his character, if not of his technical education. And the newcomers knew how to treat dogs. So Burl and Saya went forward, with the confident pleasure with which well-raised children and other persons of innate dignity greet strangers. The ship was the _Wapiti_, a private cruiser doing incidental exploration for the Biological Survey in the course of a trip after good hunting. It had touched on the forgotten planet, and it would never be forgotten again. _EPILOGUE_