Our warrior monk unhesitatingly jumped through the window, followed by Mr Holmes and, slightly later, by myself. I am not the most agile of persons, I must admit, and I tripped on the sill and tumbled into a bed of rather prickly roses. I sprang up briskly enough, though, and sped after Mr Holmes. It was extremely difficult to see anything clearly in the infernal darkness, but I did manage to get occasional glimpses of Mr Holmes's running form, so that I was just able to follow him in the confusion of trees and bushes. Then the dark shadow of the garden wall loomed ahead and I saw Mr Holmes run into it – and disappear!

On reaching the wall – at the point of Sherlock Holmes' disappearance – I discovered a small but solid wooden door built into the wall. The door was open, so I went through it quickly. The moment I got to the other side, the moon came out from behind a bank of clouds, and I saw that we were outside the palace compound, on an open stretch of land, probably at the back of the Jewel Park. The pale moonlight clearly revealed the warrior monk and Mr Holmes running close at the heels of the black-garbed intruder who was heading for a small stone bridge arching over a little winding stream. Before the bridge was a palanquin borne by some half-a-dozen uniformed figures.

The intruder was now running very fast. He had transferred both his swords to his left hand, while with his right he extracted a white tubular object from the recesses of his clothes and held it forward, as if to hand it over to someone in that company ahead.

'Stop him!' cried Holmes, raising his revolver to fire.

But once again he was anticipated by our valiant monk. The fellow twirled his weapon rapidly over his head and released it in the direction of the fleeing intruder. The missile hummed across the distance and struck the man squarely behind the head with an audible crunch. He dropped in his tracks like wet buffalo dung. His two swords fell on the ground with a clatter, and the white cylinder rolled away from his lifeless hand. It was a rolled up scroll, or something like it.

Sherlock Holmes rushed forward to recover the object. Just then the thick curtains covering the sides of the palanquin parted slightiy, and a sickly white hand emerged. The thin, gnarled hand described some strange gestures, like the passes of a way-side jadoo wallah, and – may I be born as a louse in a Baluchi's beard if I am lying – the scroll rose from the ground, hovered in midair for a brief moment, and then flew over to the palanquin, straight into the waiting hand. The hand, with the scroll, then quickly drew back into the palanquin and the curtains closed. A thin wailing voice came from within the palanquin, issuing some kind of order, for the uniformed men quickly shouldered the closed litter and prepared to leave.

Our warrior monk was clearly a chap with a bounden sense of duty, for he charged unhesitatingly forward to intercept the departing company. The thin hand emerged from between the curtains of the litter again, and made some more of those strange passes. As if at a command the two swords on the ground flew up into the air, flicked and swung around like the needle of a monstrous compass searching for the North pole, and, on pointing in our direction, suddenly froze. A split second later they shot forward like twin arrows.

The first one flew in the direction of the monk. The second sped straight towards Mr Holmes. He raised his right hand to ward it off. At the last moment it seemed to deflect the tiniest bit and, striking his right shoulder plunged into a tree trunk behind. With a cry Mr Holmes dropped his revolver. I ran up to assist, to resuscitate, but then noticed that the first sword had struck our warrior monk in the middle of his chest, impaling him like a lepidopterist's specimen.

For a moment I was transfixed with fear and indecision, but then noticed that the palanquin and its bearers were fast disappearing over the bridge and into the darkness beyond. I quickly picked up Mr Holmes's revolver and fired a few rounds at our departing foes. It was, of course, a futile gesture, made more so by my previously mentioned incompetence in matters concerning the discharge of firearms. But at least the report of the weapon served to draw the attention of Tsering and the others – who had lost their way in the park – and who now came quickly to our aid.

'What has happened…?' Tsering cried, looking around him. 'Mr Holmes, you are hurt.'

'A mere scratch, my dear fellow,' said Holmes clutching his right arm in pain, and not looking as well as he claimed to be. 'But how is he – the monk guard?'

The warrior monk – brave fellow – was dead as a door-nail. The sword had gone right through his heart. But he died partially avenged, for the masked intruder too – we discovered on investigation – was dead. The back of his head had been crushed by the force of the monk's missile. Tsering removed the black scarf from around the dead assassin's head.

'See the small burn-marks on his shaven head, Mr Holmes,' said Tsering, holding a lantern over it. 'He was a Chinese monk.'

'Hmm… yes. I have heard that certain monasteries in China have the reputation of training their members to become skilled assassins rather than holy men.' Sherlock Holmes remarked, rather abstractedly. Then he clutched his arm tighter in sudden pain, and spoke in a low hiss. 'But we lose precious time. The palanquin must be followed.'

Mr Holmes quickly explained to Tsering about the cylindrical object being taken by the mysterious person in the palanquin, and instructed Tsering to take some guards and follow it.

'… it left a few minutes ago so it won't be too difficult to catch up with it. Keep a safe distance. And don't, if you value your life, try to stop or apprehend it. I just want to know where it is going.'

Tsering quickly went off with two soldiers, while some other guards carried away the two bodies. Mr Holmes's wound was now bleeding quite severely and his face was drawn and deathly pale, so I helped him back to the palace.

The Lama Yonten quickly summoned a monk physician who bathed Mr Holmes's wound and treated it with some aromatic herbal salve. Servants also brought in hot tea and other refreshments, which were very welcome to us after our trying experiences of the night. As he was being tended, Sherlock Holmes narrated to the Lama the strange occurrences by the bridge. The Lama seemed much troubled by Mr Holmes's tale.

'This is terrible, terrible,' the Lama said, shaking his head from side to side. 'But at least you have, for the present, prevented an unthinkable evil and a national catastrophe.'

'Is His Holiness all right?' Holmes inquired.

'Yes. I have just come from his bed-chamber. He is unharmed. Fortunately the assassin must have made a mistake and entered His Holiness's chapel instead of his bedchamber.'

'Humm… perhaps,' said Sherlock Holmes speculatively. 'Though that could have been his intention all along.'

'What do you mean?' the Lama asked, puzzled.

'Well, when I was chasing the intruder, I noticed that he had something in his hand, which he tried to hand over to whoever it was in that covered litter.'

'I saw it too, Sir,' I ventured. 'It looked like a rolled-up scroll or a roll of parchment.'

'Exactly. Now it would not be unreasonable to assume that the article had been taken from the chapel. And, since our intruder did not strike me as a chance thief, one could possibly conclude that the man had intended to enter the chapel and steal the scroll in the first place.'

'So you do not think that he had any murderous intentions?' the Lama Yonten queried.

'I cannot really say,' answered Holmes, shrugging his shoulders. 'Of course, I must confess that such an intruder, armed with two wicked swords, is someone to whom one cannot confidentiy attribute peaceful intentions. But considering the facts it would seem that his principal task was not murder, but the purloining of some object from the chapel.'