"We have, at all events, escaped being burned alive," my fair companion exclaimed when she recovered breath. "But this place is weird and dismal enough."

"True," I answered. "There must, however, be some exit, or Samory would not have entered it. We must explore and discover it."

Glancing around the mysterious vault I saw burning in a niche, with a supply of oil sufficient to last several weeks, a single lamp that had apparently always been kept alight. Taking it up I led the way through the long narrow chamber. The walls, blackened by damp, were covered with great grey fungi, while lizards and other reptiles scuttled from our path into the darkness. At the further end, the vault narrowed into a passage so low that we were compelled to stoop when entering it. In this burrow, the ramifications of which were extraordinary, Liola's filmy garments came to sad grief, for catching upon the projecting portions of rock, they were rent from time to time, while the loss of one of her little green slippers necessitated some delay in recovering it. Yet groping along the narrow uneven way in search of some exit, we at length came into a larger chamber, bricked like the others, and as we entered it were startled by a sudden unearthly roar.

We both drew back, and Liola, in fear, clutched my arm.

"Listen!" she gasped. "What was that?"

Again the noise was repeated, causing the low-roofed chamber to echo, and as I peered forward into the darkness, my gaze was transfixed by a pair of gleaming fiery eyes straight before us.

Similar noises I had heard in the forest on many occasions, and the startling truth at once flashed across my mind. Confronting us was a lion!

I stood in hesitation, not knowing how to act, while Liola clung to me, herself detecting the gleaming eyes and being fully aware of our peril. Yet scarcely a moment passed ere there was a loud rushing sound in the darkness, and the animal, with a low growl, flew through the air in our direction. We had no time to elude him, but fortunately he seemed to have misjudged his distance, for he alighted about half-a-dozen paces short of us. So close was his head that the two gleaming orbs seemed to be rivetted to us. We felt his breath, and unable to draw back, we feared that each second must be our last.

Next moment I heard a clanking of chains, a sound that gave me instant courage.

"Hark!" I cried joyously. "At present we are safe, for the brute is chained!"