Again the floor jerked beneath them as another enemy torpedo sizzled through the place where the ship might have been.

"Explosion at fifteen-sixty!" shouted two observers at once.

The FCO's face suddenly broke into a grin. "We did it," he said softly.

Then the intercom flickered on. An excited Space Marine said: "Captain Dobrin! There's something funny going on down here; that Enlissa officer we've got in the brig just dropped dead!"

It was at that instant that Roysland Dwyn found his answer. The pieces of the whole jigsaw puzzle fell into place and made a beautiful picture. And he realized that the Enlissa, too, had changed their battle tactics.

And that was when the explosion hit.

Four torpedoes had come in on the X-69 at once, and the robot had been a fraction of a second too late in computing the trajectories all at once and figuring a safe path.

The screenbuster's detonation jarred the whole ship violently. Then there were two thumps as a pair of flies came into the hole through the screen and blasted the interior of the cruiser.

Roysland wasn't sure what had happened; the whole control room had suddenly seemed to turn upside down. When he picked himself up from one wall—which had now become "down"—his nose was bleeding, and his right arm was dead to the shoulder. Broken clavicle.