"Constructive effort instead of destructive," argued the Karbix. "Let them build--study--learn--advance. It is all too true that we are far behind other races of the System in all really important things." "But what of Urvan and his people?" Roban brought up his last and strongest argument. "They are as savage as we are, if not more so. As you say, the necessity for continuous warfare ceased with the destruction of Mardonale, but are we to leave our whole planet defenseless against an interplanetary attack from Urvania?" "They dare not attack us," declared Tarnan, "any more than we dare attack them. Seaton the overlord decreed that the people of us two first to attack the other dies root and branch, and we all know that the word of the overlord is no idle, passing breath." "But he has not been seen for long. He may be far away and the Urvanians may decide at any time to launch their fleets against us. However, before we decide this momentous question I suggest that you two pay a visit of state to the court of Urvan. Talk to Urvan and his Karbix as you have talked to me, of coöperation and of mutual advancement. If they will coöperate, we will." During the long voyage to Urvania, the third planet of the fourteenth sun, however, their new ardor cooled perceptibly--particularly that of the younger man--and in Urvan's palace it became clear that the love of peaceful culture inculcated upon those fierce minds by contact with more humane peoples could not supplant immediately the spirit of strife bred into bone and fiber during thousands of generations of incessant warfare. For when the two Osnomians sat down with the two Urvanians the very air seemed charged with animosity. Like strange dogs meeting with bared fangs and bristling manes, Osnomian and Urvanian alike fairly radiated hostility. Therefore Tarnan's suggestions as to coöperation and understanding were decidedly unconvincing, and were received with open scorn. "Your race may well wish to coöperate with ours," sneered the Emperor of Urvania, "since, but for the threats of that self-styled overlord, you would have ceased to exist long since. And how do we know where that one is, what he is doing, whether he is paying any attention to us? Probably you have learned that he has left this System entirely and have already planned an attack upon us. In self-defense we shall probably have to wipe out your race to keep you from destroying ours. At any rate your plea is very evidently some underhanded trick of your weak and cowardly race--" "Weak! Cowardly! _Us?_ You conceited, bloated toad!" stormed Dunark, who had kept himself in check thus far only by sheer power of will. He sprang to his feet, his stool flying backward. "Here and now I demand a meeting of honor, if you know the meaning of the word honor." * * * * *