Xenthl's features had lost their healthy pink tinge. "You have mastered," he said, "a practical application of the chain-reaction principle. It is impossible, but I have seen you do it with my own eyes." "That was the object in my having come," Kram said in his most courteous tone. "And it is the proof which I knew your excellency would demand. In addition to which, I might inform you that I am Gaylord Kram!" Silence. Then: "This is indeed a matter for some consideration," Xenthl said. And even the mask-like face of the arrogant Sirian was not able to disguise the look of utter incredulity which was shadowed beneath its still-white-tinged surface. * * * * * "Kram, you'll hang for this!" Gaylord Kram stood at rigid attention before Sectors-General Hoskins on the flight-deck of the General Flagship. He had drawn his own craft alongside and boarded with Major Luverduk at the General's command, and under the ugly snouts of the General's artillery. "I trust," he said, "that you will accept my apology for having issued you a false communication. But I theorized that only in anger would I be followed so promptly and with such a show of strength. Only the thought of surrender could make you angry, sir!" "You impudent puppy! You--" Hoskins was livid. He did not shake. He vibrated. "It was necessary, sir. I was bluffing, but I needed at least the appearance of armed might to give credence to my strategy. I readily admit having rescued our planet by means of what may unappreciatively be termed trickery. As I tricked Luverduk, here, by simply using a mined target on the detonation range, so I also attempted to trick Xenthl with five unmanned space-cruisers, loaded to the seams with atomic detonators timed to produce the effect of chain-reaction and set off by remote control. There was a miniature radar transmitter of my own design within the blast-rifle which I had Xenthl's marksman use. Quite simple, really." "Simple is hardly the word!" Hoskins thundered. "With the Sirian G-ray staring us in the face, _you_ try your hand at strategy! I hope there is time to hang you before Earth is blown to Kingdom Come!" "Never fear, sir! Xenthl had merely used an innovation of the Q-type light-bender to produce a mirage at the desert location of his supposed 'abandoned laboratories.' First the buildings were 'seen,' then, at the instant his weapon was supposedly 'fired,' they were not. A mirage had been turned on and off at will. That was all! Putting it simply, sir--I theorized that the G-ray was, in the first place, no more than a colossal bluff itself!" "Theorized, the man says!" The General's complexion blended nicely with his lavender tunic. "To him, politics is five-card stud! To him--"