in which I lay concealed, when a second soft call drew my gaze upward to where the path ceased to be a ravine and topped the slope above.
'Another dacoit was descending, almost silently, but very swiftly.
'I shrank back.
'A low-toned conversation took place in the darkness beneath me; and then the pair raised the body of Sir Lionel and carried it rapidly up the slope and over the top.
'I gave them twenty seconds. I could risk no more. Then, fairly silent in my soft slip- pers, I raced up and threw myself prone on the crest.... They were heading westward across the plateau.
'Naturally, I had made myself acquainted with the outstanding peculiarities of the district immediately surrounding Sir Lionel's excavation; and in a flash, as I lay there, plainly visible in the moonlight should either of the dacoits have looked back, the truth dawned upon me. I knew where they were making for.
They were carrying him to Lafleur's Shaft!'
3
'When at last, using what little cover I could find, I ventured to approach the entrance to the shaft--which, I discovered, is a long, sloping tunnel--the dacoits were already far ahead of me. I could just see the moving light of a lantern.
'I stopped, lying flat by the entrance and looking down. What should I do next?
'For one moment the dreadful idea came to me that they were going to bury him-- alive! I had it in mind to rush back to the camp for assistance, since I was single-handed and had no notion how many the enemy numbered.
'Wiser second thoughts prevailed. Sir Lionel lived. And they needed his knowl- edge....
'Of Lafleur's Shaft I knew next to nothing. From what little I had gathered of its history, I understood that it was an aban- doned cutting, terminating in a dead-end some forty feet below the level of the plateau.
'I waited--until I thought I might venture to descend the shaft to the first bend. It was hot and still--very still. No light showed ahead of me nor could I hear a sound. My sense of mystification increased. Where had they gone? What was their purpose?
'Risking everything, I flashed a light along the sloping path below me. I saw a rough tunnel terminating in another bend. I began to descend it. Sometimes my foot slipped and I stopped, listening.... Not a sound. I descended still further. Lafleur's Shaft, I learned, forms roughly a slanting figure Z. At last I came to a yawning pit. One fact my lamp revealed--the fact that a ladder rested in it. I stood in darkness, listening again.
'I could hear nothing.
'Using my lamp sparingly, I found my way to the head of the ladder and climbed down. On an irregular mass of stone at the base I paused. So far as my scanty informa- tion carried me, this was the end of Lafleur's Shaft. It was empty! 'Where had the dacoits gone?
'I knew, from experience of these wiry little Burmans, that they possessed a gorilla- like strength and that for one to have carried even so heavy a man as Sir Lionel Barton down the ladder slung across his shoulders was not an impossible task.
'But where had he gone?
'Cautious examination discovered a ragged gap in one wall of the pit, or well, in which I stood. I groped my way through and found myself in a slanting passage running, roughly, parallel with the tail of the Z of Lafleur's Shaft, but hewn in the solid rock and obviously of very early origin.
'Far below to my right, a vague light showed....
'I stood still again, listening.
'Voices... then a crashing, booming sound.
'I crept down the slope. I came to a second ladder, and looking up saw the stars. This was Barton's excavation! A dim percep- tion of the truth began to dawn on me. I stole down a little further. I lay flat in the passage --watching.
'In the light of several lanterns I saw a party of half-naked men working feverishly to break a way through the wall! They worked under a woman's direction! I heard her voice -- an unforgettable, bell-like voice.... '
'Madame Ingomar!' I shouted, excitedly, jumping up and staring at Sir Denis.
'Undoubtedly, Fah Lo Suee. She was questioning Barton, who lay in the passage... and Barton was answering her!'
4
'Beyond doubt they had been at their task for hours. Barton, unwillingly--perhaps unwittingly--helped them to complete it. They forced the opening. They all went through-four men led by Fah Lo Suee. Sir Lionel was left where he lay.
'I began to move back to the ladders. I had them in a trap! Not daring to use a light, I groped my way to the foot of the pit. I climbed to the first platform. Now using my torch, I went up to the second.
'Switching off the torch, I pressed myself against the side of the excavation.
'Three lanterns passed the gap below. I counted them. Their bearers were heading for Lafleur's Shaft. There was an interval. Then, a fourth light shone out into the pit; it grew brighter.
'A woman, in native dress, looked up to where I crouched on the platform....
'She withdrew, and went on. I heard a vague shuffling--a distant voice. Silence came.... Three men and one woman. Where was the fourth man--and Barton?
'The answer was all too obvious.... Barton had served the purpose of Fah Lo Suee: his usefulness was ended. Whatever she had sought, she had found. And now I realized that my immediate duty was to Sir Lionel. I crept down again, rung by rung. And, just as I reached the jagged opening, an explanation of the mystery of the fourth man burst upon me with icy certainty....
'Already it might be too late! Barton had served the purpose for which he had been kept alive. Now, a dead man--not a syntheti- cally dead man--he was to be replaced in the hut. This was the task of the dacoit who had carried him to Lafleur's Shaft, and who had remained behind to carry him back! 'A dim light shone through the newly made opening. I crawled nearer; so near that at last I could touch Sir Lionel's body.
'The dacoit came out, stooping and holding the lantern. He would have been an easy shot but I had decided against the use of firearms. The professional strangler never had a chance; because I'd got my thumb on his jugular and my knee between his lean thighs almost before he suspected I was there. I had little compunction; but these people are queerly situated. This fellow had sinews like iron wire and the strength of a tiger. Yet, when I removed my grip and wondered how I should tie him up... he was dead!
'Perspiration blinded me and I was shaking with my exertions. I stood there, the fallen lantern at my feet, looking down at those two ghastly companions--the one indisputably dead; the other, for all his rigour and grey- white face, alive for all I knew to the contrary. Certainly, I had heard his voice not long since....
'Taking up the lantern, which had remained alight, I stooped and went in through the triangular opening which had been made in the wall.... I found myself in the Tomb of the Black Ape!
'I need not describe it. The great sarcophagus was open--the wooden lid roughly in place, the stone one lying on the floor. I raised the sycamore covering. The mummy case was empty.
'Observing in a comer a cavern-like opening, I crossed and explored it. It proved to be a low antechamber. Into this I dragged the dacoit so that he should be out of my sight. Then, I stood in the tomb, endeav- ouring to make up my mind what I should do about Barton.
'My brain was not at its best. But never- theless I had to imagine what would happen when the dacoit failed to report. Also, I had to take it for granted that my theory respecting his orders was correct; namely that his job was to carry Barton back to the hut, relock the door, and rejoin Fah Lo Suee wherever she might be.
'Suppose one of the enemy returned in my absence and found Barton where he lay? It was a dreadful possibility.
'First I thought of dragging him into the antechamber with the dead dacoit. Then I realized that this would be useless. My second idea, wild though it sounds, was a good one. They would never think of looking in the sarcophagus!...
'The task was a heavy one. But I managed it. I replaced the lid, using some wedges which I found inside to prevent it closing entirely and to allow of air reaching the interior.
'I came out of Lafleur's Shaft. I heard the sound of a descending plane! At first, I couldn't believe my ears. Then came the explanation.
