'Did Your Honour attach so much importance to Wang's tale about the nightwatch because you think that those men are connected with this crime?'

Judge Dee shook his head.

'No,' he said, 'not for that reason. Even without having learned of the incident which Candidate Wang related today, my colleague Judge Feng closely questioned the nightwatch, as a matter of routine investigation of everyone who had been near the scene of the crime. Their headman was able to prove that neither he nor his two companions had had anything to do with it.'

Chiao Tai came back with Warden Gao, who bowed deeply before the magistrate.

Judge Dee looked sourly at him and said:

'So you are the warden in whose quarter this disgraceful affair took place. Don't you know that you are responsible for whatever irregularities occur there? Be more diligent about your duties! Make rounds day and night and don't waste the Government's time in inns and gambling dens!'

The warden hastily knelt down, knocking his head on the floor three times. Judge Dee continued:

'Now you shall lead us to Half Moon Street, so that we can have a look at the scene of the crime. I only wish to obtain a general impression. Apart from yourself I need only Chiao Tai and four constables. I shall go incognito, Sergeant Hoong will act as the leader of our party.'

Judge Dee put on a small black cap and they left the tribunal by the western side door, Chiao Tai and Warden Gao leading the way with the four constables bringing up the rear.

They first walked along the main street in a southern direction, till they came to the back wall of the Temple of the City God. There they turned west, and soon saw the green glazed tiles of the Temple of Confucius on their right. They crossed the bridge over the river that crosses the western section of the city from north to south. Here the pavement ended, they found themselves in the quarter of poor people. The warden turned left into a street lined on both sides with small shops and dilapidated houses, then entered a narrow, curved alley. This turned out to be Half Moon Street. Warden Gao showed them the shop of Butcher Hsiao.

As they stood in front of the shop, a crowd of onlookers gathered. Warden Gao shouted:

'These are officials of the tribunal investigating the scene of the crime on His Excellency's orders. Get a move on! Don't interfere with officials in the execution of their duty!'

Judge Dee noted that the shop stood on the corner of a very narrow side street and that its sidewall had no windows. The godown stood about ten feet behind it. The window of the garret where the girl had lived was visible a few feet above the top of the wall that connected the shop with the godown. On the opposite side of the alley rose the high, blind sidewall of the guild house on the other corner. Turning round and looking towards the street Judge Dee saw that Tailor Loong's shop was located exactly opposite the entrance of the alley. From the attic of the tailor shop one could see obliquely into the alley and obtain a view of the girl's window.

While Sergeant Hoong was asking Warden Gao some routine questions Judge Dee said to Chiao Tai: 'Try to climb up to that window!' Chiao Tai smiled, tucked the slips of his robe in his belt and jumped up, grasping the top of the wall. He pulled himself up and found a hold for his right foot in a hole in the wall where a few bricks had dropped out. Then he raised himself slowly, pressing his body close to the wall, till he could put his hand on the window-sill. Pulling himself up again, he put his leg over the sill, and climbed inside.

Judge Dee nodded from below. Chiao Tai swung himself over the window-sill. He hung for a moment by his hands, then let himself drop down the five feet or so to the ground, where he landed with hardly a sound by using a boxer trick known as 'a butterfly descending on a flower.'

Warden Gao wanted to show them the victim's room, but Judge Dee shook his head to Sergeant Hoong, who said curtly:

'We have seen what we came to see. Let us return.'

A leisurely walk took them back to the tribunal.

After the warden had respectfully taken his leave, Judge Dee said to the sergeant:

'What I saw just now has confirmed my suspicions. Have Ma Joong called here!'

After a while Ma Joong entered, and bowed to the judge.

'Ma Joong,' Judge Dee said, 'I must charge you with a difficult and probably a dangerous job.'

Ma Joong's face lit up and he said eagerly:

'I am at your service, Your Honour!'

'I order you,' Judge Dee said, 'to disguise yourself as a low-class vagrant bully. You will frequent the haunts of the scum of this city and try to find a renegade Taoist or Buddhist mendicant monk or a ruffian who has taken on that guise. Your man is a tall, muscular fellow-but not the type of chivalrous highwayman you used to associate with when you were living in "the green woods." This is a degenerate brute whose faculties have been dulled by a life of violence and vile debauch. He has particularly strong hands with short, broken nails. I don't know what kind of robe he will be wearing when you find him, but probably it will be a ragged cowl. I am sure, however, that he, as all mendicant monks, will have with him the "wooden fish," that skull-shaped wooden hand gong those monks use for attracting the attention of the passers-by. The final proof of his identity is that he has, or till quite recently had in his possession a pair of solid gold hairpins of peculiar workmanship. This is a sketch of them, which you must memorise.'

'That is a fair enough description,' Ma Joong said. 'But who is this man and what crime did he commit?'

'Since I never met him,' Judge Dee said with a smile, 'I cannot tell you his name. But as to the crime he committed; he is the vile ruffian who raped and murdered the daughter of Butcher Hsiao!'

'That is a job I shall enjoy!' Ma Joong exclaimed excitedly and hurriedly took his leave.

Sergeant Hoong had been listening with growing astonishment to Judge Dee's instructions to Ma Joong. Now he exclaimed:

'Your Honour, this bewilders me completely!'

Judge Dee, however, just smiled and said:

'You have heard and seen what I heard and saw. Draw your own conclusions!'

In the morning of that same day, when Tao Gan had left Judge Dee's private office, he changed into a quiet but distinguished-looking outer robe and put on a black gauze cap as is affected by gentlemen of leisure without official rank.

In this attire he walked through the northern city gate and strolled through the northern suburb. He found a small restaurant where he ordered a simple luncheon.

From the second floor where he sat by the window he could see through the lattice-work the curved roof of the Temple of Boundless Mercy. As he paid his bill he said to the servant: 'What a magnificent temple that is! How pious the monks must be to receive such plentiful blessings from the Lord Buddha!' The waiter grunted.

'Those baldheads may be pious,' he replied, 'but there is many an honest householder in this district who would gladly cut their throat!'

'Mind your language, my man!' Tao Gan said with feigned indignation. 'You are speaking to a devout believer in the Three Jewels.'

The waiter gave him a sullen look and went away without taking the tip that Tao Gan had left on the table. Tao Gan contentedly put the cash back into his sleeve and left the restaurant.

After a short walk he arrived at the three-storied gate of the temple. He ascended the stone steps and entered. Out of the corner of his eye he noticed three monks sitting in the gatekeeper's room. They scrutinised him carefully. Tao Gan walked slowly through the gate, then suddenly stopped short, felt in his sleeves, and looked to left and right as if undecided what to do.