Ten minutes later two large wagons laden with fagots were slowly mounting the slope. A long file of woodcutters, their backs bent double, followed, enveloped in the somber night. My tutor and I walked ahead, leading the horses by their bridles, and the melancholy moon vaguely lighted this funereal march. From time to time the wheels grated. Then the carts, raised by the irregularities of the rocky road, fell again in the track with a heavy jolt.
As we drew near the cavern, on the playground of the roebucks, our cortége halted. The torches were lit, and the crowd advanced toward the gulf. The limpid water, running over the sand, reflected the bluish flame of the resinous torches, the rays of which revealed the tops of the black firs leaning over the rock.
"This is the place to unload," the doctor then said. "It's necessary to block up the mouth of the cavern."
And it was not without a feeling of terror that each undertook the duty of executing his orders. The fagots fell from the top of the loads. A few stakes driven down before the opening of the spring prevented the water from carrying them away.
Toward midnight the mouth of the cavern was completely closed. The water running over spread to both sides on the moss. The top fagots were perfectly dry; then Dr. Weber, supplying himself with a torch, himself lit the fire. The flames ran from twig to twig with an angry crackling, and soon leaped toward the sky, chasing clouds of smoke before them.
It was a strange and savage spectacle, the great pile with trembling shadows lit up in this way.
This cavern poured forth black smoke, unceasingly renewed and disgorged. All around stood the woodcutters, somber, motionless, expectant, their eyes fixed on the opening; and I, although trembling from head to foot in fear, could not tear away my gaze.
It was a good quarter of an hour that we waited, and Dr. Weber was beginning to grow impatient, when a black object, with long hooked claws, appeared suddenly in the shadow and precipitated itself toward the opening.
The spider, driven back by the live coals, reëntered its cave. Then, smothered doubtless by the smoke, it returned to the charge and leaped out into the midst of the flames. Its long legs curled up. It was as large as my head, and of a violet red.