Cabot sprang to his feet and slid home the huge beam which barred the door on the inside. This was a precaution which he had neglected to take before. Next he filled the hole in the door with some boards hastily wrenched from the work-bench. Then picking up a Formian rifle and bandolier which hung on the wall, he made his way to one of the slit windows on the same side as the door and peeped cautiously out.

The result was immediate; an arrow sped through the window and passed just above his head. But even as he ducked instinctively, he saw a dark form moving behind a bush at some distance outside; so quickly rising again, he discharged the rifle square at the bush.

There came a cry of pain, followed by silence. And there were no more feathered incursions.

Not knowing whether his enemy had been disposed of, or whether the cessation of the stream of arrows was merely a ruse to entice him from his shelter, Myles did not dare venture forth to investigate.

From the first time the arrow had struck the work-bench until this final squelching of the unknown enemy, Myles had been engrossed in action. Now came the reaction, as he realized how narrowly he had twice escaped from death in the last few minutes. He shuddered at the thought, and turned pale; not, however, at the danger to himself, but rather at the danger to his loved ones in Cupia. He must keep himself alive until he could reach and save them from whatever peril it was that had caused Lilla to send the SOS which had recalled him to Poros.

But being ever the inquisitive scientist, his attention was soon distracted by the arrow which stood sticking to the bench.

Its shaft was of some hard and very springy wood. Its tip was of chipped stone resembling flint, and bound to the shaft by vegetable fibers. Its “feathers” were thin laminae of wood, doubtless because birds, and hence true feathers, are unknown on Poros.

Why on earth—or rather, on Poros—were the ant-men employing such crude weapons? Rifles they had aplenty, and powder was easy to manufacture. Besides what did they know of bows and arrows, which had never been used by them, even in the days before Cabot the Minorian introduced firearms upon the planet?

Thus these arrows presented a perplexing problem. But a practical job remained to be performed before Myles was to have any time for abstract questions. The message to Cupia must be sent off.

The earth-man returned to the radio set. The trophil-engine and the generator were still running. The whole apparatus appeared to be functioning properly. And so Myles ticked off into space the following message: