'Come on,' Ma Joong said, let there be no ill feeling! Everybody in this world has his allotted task, and mine happens to be to run around in this city for His Excellency the Judge.'

'So the rumour is true!' the fat man said mournfully. 'No, brother, I lost my affection for you. Leave an honest citizen alone while he meditates on the small portions the greedy owner of this dismal inn chooses to dish up.'

'Well,' Ma Joong said jovially, 'as to small portions, if you would favour another dozen stuffed crabs, I and my friends shall be very pleased if you would join us in our meal!'

Sheng Pa slowly wiped his fingers on his beard. After a while he said:

'Well, it shan't be said of me that I can't let bygones be bygones. It will be an honour to meet your friends.'

He rose and Ma Joong introduced him ceremoniously to Sergeant Hoong and Tao Gan. Ma Joong selected a square table and insisted that Sheng Pa take the place of honour with his back against the wall. The Sergeant and Tao Gan sat down on either side of him, and Ma Joong took the seat opposite. He shouted down the stairs for more food and wine.

When the servant had gone down again, and the first round drunk, Ma Joong said:

'I see with pleasure, brother, that you have at last found yourself a nice jacket! That must have cost you a pretty penny, people don't give away stuff of that quality! You must have become a wealthy man!'

Sheng Pa looked uncomfortable. He mumbled something about the approaching winter, then hastily buried his face in his wine cup.

Ma Joong suddenly rose and knocked the wine cup from his hand. Pushing the table against the wall he barked:

'Speak up, you rascal! Where did you get that jacket?'

Sheng Pa quickly looked left and right. He was pinned against the wall by the table edge pressing into his tremendous paunch, and with Sergeant Hoong and Tao Gan on either side of him there was no means of escape. He heaved a deep sigh and slowly started to loosen his jacket.

'I should have known,' he growled, 'that nobody can expect to eat in peace with you running dogs of the tribunal! Here, take this wretched jacket! This old man shall freeze to death in the coming winter, and little will you people care!'

Seeing Sheng Pa so amenable, Ma Joong sat down again and poured out a cup of wine. He pushed it over to the fat man and said:

'Nothing is farther from me than to inconvenience you, brother. But I must know how you got that black jacket.'

Sheng Pa looked very doubtful. He pensively scratched his hairy chest. Sergeant Hoong now joined the conversation.

'You are a man of the world,' he said affably, 'and you have a rich and varied experience. You doubtless know that it's a wise policy for people in your position to be on good terms with the tribunal. And why shouldn't you? Brother, as a counsellor of the Beggars' Guild you belong, so to speak, to the city administration! Why, I consider you as a colleague!'

Sheng Pa emptied his cup, and Tao Gan quickly refilled it for him. Then he said sadly:

'When pressed hard by both threats and flattery, there is nothing left for a defenceless old man but to tell the simple truth.'

He emptied his cup in one draught, then went on:

'Last night the warden comes and tells us to clear out of the temple yard at once. Did he give us a reason? No! But obedient citizens as we are, we leave. But an hour or so later I come back, for I buried a few strings of cash in a corner of that yard, as an emergency fund, and I feel I shouldn't leave those there.

'I know that yard as the palm of my hand, so I don't need any light. Just when I put the strings in my belt, I see a man coming out of the side gate. I think that must be a low ruffian, for what honest citizen rushes about in the middle of the night?'

Sheng Pa looked expectantly at his companions. When no one made an encouraging comment, he went on resignedly:

'I trip that man up when he comes down the stairs. Heavens, what a mean crook! He scrambles up and pulls a knife on me! In self-defence I knock him down. Do I strip him naked and steal all his possessions? No! I have my principles. So I only take his jacket, meaning to bring it to the warden this afternoon while reporting this case of assault. Then I leave that place, hoping and trusting that the proper authorities will deal with the ruffian in their own good time. That is the whole, unvarnished truth!'

Sergeant Hoong nodded. He said:

'You acted like a good citizen, brother! Now we shan't speak of the cash you found in that jacket, such small things are not mentioned among gentlemen. But what about the personal belongings you found in the sleeves?'

Sheng Pa promptly handed the jacket to the Sergeant.

'Everything you find inside is yours!' he said generously.

Sergeant Hoong went through both sleeves. They were completely empty. But when he ran his fingers along the seam, he felt a small object. He put his hand inside and brought out a small square seal of jade. He showed it to his two friends. They saw that four characters were engraved on it, reading: 'Lin Fan's true seal.'

The Sergeant put it in his sleeve and handed the jacket back to Sheng Pa.

'Keep it,' he said. 'As you said correctly, the man you took it from is a mean criminal. You'll have to go back with us to the tribunal as a witness, but I assure you that you have nothing to fear. Now let us get at those crabs before they grow cold!'

They all fell to with gusto and the piles of empty crab shells rose on the table with astounding speed.

When they had finished Sergeant Hoong paid the bill. Sheng Pa wangled from the owner a ten per cent reduction. Restaurant keepers always give special prices to officials of the Beggars' Guild, for else crowds of repulsive-looking beggars would assemble in front of their door and scare away customers.

Back at the tribunal they took Sheng Pa straight to Judge Dee's private office.

When Sheng Pa saw the judge sitting behind his desk, he raised his hands in astonishment.

'May August Heaven preserve Poo-yang!' he exclaimed horrified. 'Now a fortune-teller has been appointed magistrate over us!'

Sergeant Hoong quickly explained the truth to him. Sheng Pa hastily knelt down in front of the desk.

When the sergeant had handed Lin Fan's seal to the judge and reported what had happened, Judge Dee was exceedingly pleased. He whispered to Tao Gan:

'That's how Lin Fan got wounded! He was attacked by this fat rascal just after he had trapped us under the bell!' To Sheng Pa he said: 'You have made yourself very useful, my man! Now listen carefully. You shall be present during the afternoon session of this tribunal. A certain person shall be brought forward and I shall confront you with him. If that should be the man you fought with last night, you'll say so. Now you can go and rest awhile in the guard house.'

When Sheng Pa had taken his leave, Judge Dee said to his lieutenants:

'Now that I have this additional evidence, I think I can lay a trap for Lin Fan! Since he is a dangerous opponent, we shall place him in as disadvantageous a position as possible. He is not accustomed to being treated as an ordinary criminal, so that is exactly the way we shall treat him! If he loses his temper, I am confident that he'll fall into my trap!'

Sergeant Hoong looked doubtful.

"Wouldn't it be better first to force that safe in his bedroom, Your Honour?' he asked. 'And I also think we should first hear that captain.'

The judge shook his head.

'I know what I am doing,' he replied. 'For this session I only need half a dozen mats from the loft behind the temple. Tell the headman to go now and get them, Sergeant!'

His three assistants looked at each other in blank amazement. But Judge Dee vouchsafed no explanation. After an awkward pause Tao Gan asked: