Down they dropped, endlessly it seemed, while all about them, growing gradually, a bluish glow began to make itself manifest. Sarka turned and looked at the face of Jaska and noted that it--all her being--was glowing with this strange radiance.
Looking down now, to what seemed still a vast depth, they could see figures moving, tiny, almost infinitesimal, about a great circular cone, out of the depths of which came that strange bluish column whose outer tip touched the Earth.
Some inner sense warned Sarka not to touch that column, or to permit Jaska to do so. They dropped down beside it, while Sarka, for no reason that he could assign, once more took his ray director in his free hand and held it in readiness. It seemed so tiny and futile--so foolish for two people, one of them a woman--to go into the very heart of an alien world, against an unknown enemy, armed with such a tiny weapon. Two people against unguessed myriads, whose very nature was an enigma, even to Sarka.
Closer now appeared the bottom of the crater, whose floor seemed to be covered with something that looked like blue sand, or rock. From this bluish substance the glow which bathed the two Earthlings seemed to emanate.
The funnel of the crater had now given away to the immensities of space, in all directions, and the cold of outside was being replaced by a warmth which promised soon to be even uncomfortable.
Then, without a jar, the two landed at the bottom of the crater, side by side, close enough almost to that great cone to touch it. Out of the cone came that bluish column, to shoot up through the funnel down which the two had lightly dropped ... and the motion of the--whatever it was--was accompanied by a muted moaning sound, like that of a distant waterfall.
They paused there, in amazement, taking stock of their surroundings. Huge tunnels, whose roofs were lost to invisibility in the bluish haze, whose extremities could only be guessed at, reached off in all directions. As far as the two could tell they were the only living souls within the crater, though both knew better.
Sarka had the feeling, and he knew Jaska shared it with him, that innumerable eyes were studying them, innumerable intellects were cataloguing them. And somehow he sensed the presence, somewhere near, of the traitor Dalis!