At the touch of those beams, light and delicate as they were, the relay clicked and the torpedoes let go. Those frightful shells were so designed and so charged that one of them could demolish any inert structure known to man. What of seven? There was an explosion to stagger the imagination and which must be left to the imagination, since no words in any language of the galaxy can describe it adequately.

The Brittania, literally blown to bits, partially fused and even partially volatilized by the inconceivable fury of the outburst, was hurled in all directions in streamers, droplets, chunks, and masses, each component part urged away from the center of pressure by the ragingly compressed gases of detonation. Furthermore, each component was now, of course, inert and therefore capable of giving up its full measure of kinetic energy to any inert object with which it should come in contact.

One mass of wreckage, so fiercely sped that its victim had time neither to dodge nor become inertialess, crashed full against the side of the nearer attacker. Meteorite screens flared brilliantly violet and went down. The full-driven wall shield held; but so terrific was the concussion that what few of the crew were not killed outright would take no interest in current events for many hours to come.

The other, slightly more distant attacker was more fortunate. Her commander had had time to render her inertialess, and as she rode lightly away, ahead of the outermost, most tenuous fringe of vapor, he reported succinctly to his headquarters all that had transpired. There was a brief interlude of silence.

Then a speaker gave tongue. "Helmuth, speaking for Boskone," snapped from it. "Your report is neither complete nor conclusive. Find, study, photograph, and bring in to headquarters every fragment and particle pertaining to the wreckage, paying particular attention to all bodies or portions thereof.

"Helmuth, speaking for Boskone!" roared from the general-wave unscrambler. "Commanders of all vessels, of every class and tonnage, upon whatever mission bound, attention! The vessel referred to in our previous message has been destroyed, but it is feared that some or all of her personnel were allowed to escape. Every unit of that personnel must be killed before he has opportunity to communicate with any patrol base. Therefore cancel your present orders, whatever they may be, and proceed at maximum blast to the region previously designated. Scour that entire volume of space. Beam out of existence every vessel whose papers do not account unquestionably for every intelligent being aboard. Investigate every possible avenue of escape. More detailed orders will be given each of you upon your nearer approach to the neighborhood under search."


IV.

Space-suited complete, except for helmets, and with those ready at hand, Kinnison and VanBuskirk sat in the tiny control room of their lifeboat as it drifted inert through interstellar space. Kinnison was poring over charts taken from the Brittania's pilot room; the sergeant gazed idly into a detector plate.