We left the car, and passed into a dim-lighted cavern. I saw a lateral black tunnel-mouth yawning nearby, with a shining rail at its top and bottom, one above the other. And between the rails was a metal vehicle. A long, narrow car; yet with its turtle-back and its propelling gas-tube at the rear, with a rudder on each side of the tube, I realized that it was designed also for sub-sea travel. A small affair. Ten feet at its greatest width, and fifty or sixty feet long.

There was nothing startling in this evidence of underground and sub-sea transportation. But that it should be here in primitive Venia surprised me. Then I realized that Tarrano had been here perhaps many months. Quietly, secretly he had constructed this underground road. For his escape, I could not doubt it. Indeed, I did not doubt but that the man had anticipated practically every event which had occurred.

We found in the car, or boat if you will, a variety of attendants and personal belongings. Tara was there; I saw her sitting alone on one of the distant rings of seats. And Argo was among us—and others whom I had learned to know by sight and name. It was the party and equipment which Tarrano had probably originally brought with him from Venus. We, the last arrivals in the car, took our places. The doors slid closed. The car vibrated slightly; purred with its forward motors. We were started.

It was not a long trip. How far we went I have no means of knowing. But after a time, by the changed motion and sounds, I realized that we were traversing water. Then above us after another interval, they opened a hatchway. The pure fresh air of night streamed in upon us. Every light in the boat had been extinguished. At Tarrano's command I followed him up the small spider incline and through the hatchway. We stood on a little circular space of the turtle-deck, well aft—an observation space enclosed by a low metal rail. A few feet below us dark glossy water was slipping past.

At a lazy hasteless pace, we were passing along what I saw to be a broad river. The Riola Amazonia[16] I afterward learned it to be. Heavy banks of luxurious foliage, dark and silent. Inundated in places. And after a few moments we slackened, turned sharply into one of the inundated coves and nosed slowly amid a tangle of the jungle bank.

And then I saw, hidden here in the recesses of this pathless forest, a small inter-planetary flyer, painted a hazy grey-blue. Around and over it the vegetation had been carefully, cunningly trained. A few cautious lights illumined it now; but without them, and even in daylight, I knew that from above it could never be seen.

Our party entered it—a small but surprisingly luxurious vessel. The foliage from above it was cut away by ready workmen; and in half an hour more we were rising from the forest. Straight up, into that cloudless sky. The land dropped away beneath us; visually concave at first as the circular horizon seemed to rise with us. The sky overhead fortunately was empty—nothing in sight to bar our outward flight. And we carried no lights.

In a moment or two, so swiftly did we gather velocity, the lights of Venia—a distant patch of them—were visible. Then, further away, I presently saw the grey expanse of open sea. And as we mounted, the simulated concavity of the Earth turned convex. I had never seen it thus—had never been so far above its surface before. A huge grey ball down there which was our Earth. Outlines of sea and land. Then continents and oceans, enveloped by patches of cloud area. A grey ball, changing to a glowing, vaguely dull red; then silver. Dwindling—gleaming brighter silver on one side where the sunlight struck it.

We were in the realms of outer, inter-planetary space!