ruptly it was blotted out, and a semi-twilight fell. We all looked up, in spite of ourselves. An opaque veil had been drawn quite across the heavens, through which we could not make out even the shape of the sun. It was like a thunder cloud except that its under surface instead of being the usual grey-black was a deep earth-brown. As we looked up, a deep bellow stirred the air, which had fallen quite still, long forks of lightning shot horizontally from the direction of the island's interior, and flashes of dull red were reflected from the canopy of cloud.
The men stared with their mouths open. Undoubtedly the change had been some time in preparation, but all had been so absorbed in the affair of the doctor's assistant that no one had noticed. It came to our consciousness with the suddenness of a theatrical change. A dull roaring commenced, grew in volume, and then a great explosion shook the very ground under our feet.
We stared at each other, our faces whitening.
"What kind of hell has broke loose?" muttered Pulz.
The Nigger fell flat on his face, uttering deep lamentations.
"Voodoo! Voodoo!" he groaned.
A gentle shower of white flakes began, powdering the surface of everything. Far out to sea we could make out the sun on the water. Gradually the roaring died down; the lightning ceased. Comparative peace ensued. We looked again toward the cliff. Percy Darrow had not for one instant ceased to climb. He was just topping the edge of the bluff. Handy Solomon,
