'Do bones belong to someone, or are they someone?' mused Michael, rubbing at his flabby chins. 'We should debate that question sometime, Matt. The answer to your question is no, unfortunately. There are no missing persons that fit with your findings. Are you sure about the identification you made? The age of the skeleton?'

Bartholomew nodded slowly. 'After you had gone to the Chancellor, I helped Will dredge up the rest of the bones and the skull. I am certain, from the development of the teeth and the size and shape of other bones, that the skeleton is that of a child of perhaps twelve or fourteen years. I cannot say whether it was a boy or a girl - I do not have that sort of expertise. There were no clothes left, but tendrils of cloth suggest that the child was clothed when it was put, or fell, into the Ditch.'

'Could you tell how long it had been there?' said Michael. 'How long dead?'

Bartholomew spread his hands. 'I told you, I do not have the expertise to judge such things. At least five years, although, between ourselves, I would guess a good deal longer. But you should not tell anyone else, because the evidence is doubtful.'

'Then why do you suggest it?' asked Michael. He leaned forward to select an apple on the ground that was not infested with wasps, and began to chew on it, grimacing at its sourness.

The blackbird he had startled earlier swooped across the gra.s.s in front of them, twittering furiously. Bartholomew reflected for a moment, trying to remember what his Arab master had taught him about the decomposition of bodies. He had not been particularly interested in the lesson, preferring to concentrate his energies on the living than learning about cases far beyond any help he could give.

'All bones do not degenerate in the same way once they are in the ground, or in the case of this child, in mud. Much depends on the type of material that surrounds them, and the amount of water present.

These bones had been immersed in the thick, clay-like mud at the bottom of the Ditch, and so are in a better condition than if they had been in peat, which tends to preserve skin, but rot bone. But despite this, the bones are fragile and crumbly, and deeply stained. I would not be surprised if they had been lying in the Ditch for twenty or thirty years.'

'So, we might be looking for a child of fourteen who died thirty years ago?' asked Michael in astonishment.

'Lord, Matt! Had he lived, that would make him older than us!'

'I could be wrong,' said Bartholomew. He stood and stretched, giving such a huge yawn that Michael was compelled to join him.

Michael tossed his apple core into the gra.s.s. 'Simon d'Ambrey died twenty-five years ago,' he said thoughtfully.

'Perhaps even at the same time as this child. Can you tell how this child met its death?'

'Again, I cannot be certain,' said Bartholomew, rubbing his eyes tiredly. 'But there is a deep dent on the back of the skull that would have compressed the brain underneath. Had the child been alive when that wound was delivered, it would have killed him - or her - without doubt. However, if the body has lain in the King's Ditch for thirty years, the damage may have been done at any time since by something falling on it. So, this child may have been knocked on the head and disposed of in the Ditch; he may have fallen and hit his head; or he may have died of some disease and his body disposed of in the Ditch and the skull damaged later.'

Michael disagreed. 'Not the latter. Why would anyone need to hide a corpse of someone who had died in a legitimate manner? And surely someone would miss a child if it had had an accident and fallen in the river?

The only likely solution, I am sorry to say, is the first one.

That the poor thing was killed and the body hidden in the Ditch.'

Bartholomew shook his head, smiling, and slapped his friend on the shoulders. 'You have become far too involved in murder these last few years,' he said. 'Now you look for it where there may be none. How do you know the child was not an orphan, or that his parents simply did not report him missing? You know very well that a death in a large, poor family is sometimes seen as more of a relief than a cause for grief, in that it is one less mouth to feed - especially with girls. Or perhaps he was one of a group of travellers, who had pa.s.sed out of Cambridge before he was missed? Or perhaps he was a runaway from-'

'All right, all right,' grumbled Michael good-humouredly.

'Point taken. But you were in Cambridge as a child. Did any of your playmates go missing with no explanation?'

Bartholomew leaned down to pick up his medicine bag. 'Not that I recall. It was a long time ago.'

'Oh, come now, Matt!' exclaimed Michael. 'You are not an old man yet! If you are right in your hunch about the time of this child's death, he may well have been a playmate of yours. Older than you, perhaps, but you would have been children together.'

Bartholomew yawned again. 'I can think of none, and I did not play with girls, anyway, which means I only have knowledge of half of the juvenile population. You should ask someone else. And now it is late, and so I will wish you good night.'

He turned to walk back through the orchard to the College, leaving Michael to his musing. He cut through the kitchens, his leather-soled shoes skidding on the grease that formed an ever-present film over the stone-flagged floor. The great cooking fires were banked for the night, and the kitchens were deserted.

A door, concealed behind a painted wooden screen, led from the kitchen to the porch where Michaelhouse's guests were received before being ushered to the hall and conclave above. Bartholomew walked through the porch, and across the beaten earth of the courtyard to his room in the north wing.

The last rays of the sun were fading, and the honey-coloured stone of Michaelhouse's walls was a dark amber.

Bartholomew paused, and glanced around at the College, admiring, as he always did, the delicate tracery on the windows of the north and south wings where the scholars slept. The dying sunlight still caught the bright colours of the College founder's coat of arms over the porch, a cacophony of reds, blues and golds. He yawned yet again, and gave up the notion of reading for an hour by the light of a candle before he slept - all that would happen would be that he would fall asleep at the table and candles were far too expensive a commodity to waste, not to mention the possibility that an unattended candle might fall and set the whole College alight.

His mind wandered back to the grisly display of asphyxiated corpses in the Market Square some twenty- five years ago, the result of another careless candle if the burgesses were to be believed. Then, he pushed thoughts of murder and mayhem to the back of his mind, opening the door to his small, neat room. He lay on the bed, intending to rest for a few moments before rising again to wash and fold his clothes, but he was almost immediately asleep, oblivious even to the sharp squeal of a mouse that the College cat killed under his bed.

Alone in the orchard, Michael chewed his lip thoughtfully.

Bartholomew had a sister who lived nearby, whose husband was one of the richest and most influential merchants in the town. Edith was some years older than her brother. She had married young, and Bartholomew had lived with her and her new husband until he went to the school at the Benedictine Abbey in the city of Peterborough to the north. Perhaps Edith, or her husband, Sir Oswald Stanmore, might remember something about a missing child.

Michael saw the Stanmores the following day on his way back from church. It was a fine Sunday afternoon, and the streets thronged with people. Gangs of black-gowned students sang and shouted, eyed disapprovingly by the merchants and tradesmen dressed in their Sunday finery.

Edith and her husband looked happy and prosperous, walking arm-in-arm down Milne Street to the large house where Stanmore had his business premises. Although Stanmore worked in Cambridge, he preferred to live at his manor in Trumpington, a tiny village two miles south of the town. It was unusual to see him and his wife in Cambridge on a Sunday, and Michael strongly suspected that the merchant had been conducting some covert business arrangement when he should have been paying attention to the words of the priest at ma.s.s. Edith, a lively soul who enjoyed the occasional excursion into the town from the village, would not have noticed what her husband was doing, and would have been more interested in catching up with the local gossip from the other merchants' wives.

Edith had the same distinctive black hair and pale complexion of her brother, a stark contrast to Stanmore's slate-grey hair and beard. She wore a dress of deep crimson, and she carried a blue cloak over one arm, one corner of it trailing unheeded along the dusty road. With a smile, the monk recognised that she apparently had the same careless disregard for clothes as her brother, whose shirts and hose were always patched and frayed.

He headed towards her, dodging past a procession of Carmelite friars heading towards St Mary's Church, and jostling aside a pardoner with unnecessary force. Michael did not like pardoners.

Edith hugged Michael affectionately, making the usually sardonic, and occasionally lecherous, monk blush. Oswald Stanmore admonished her for her undignified behaviour in the street, but his words lacked conviction, and they all knew she would do exactly the same when she next met Brother Michael.

Stanmore, ever aware of the latest happenings in the town from his extensive network of informants, asked Michael about the skeleton that had been found.

Michael told them briefly, and asked whether they were aware of any missing children during the last twenty or thirty years.

Thirty years!' exclaimed Edith. 'Has this body lain in the Ditch so long?'

Michael shrugged indifferently. 'No, no. I am just keen to ensure we do not confine ourselves to looking recently, when the child may have died much earlier.'

Stanmore scratched his chin as he wracked his brains.

'There was old Mistress Wilkins' daughter,' he said uncertainly.

Edith shook her head. 'Reliable witnesses saw her alive and married to a farm lad over in Haslingfield village a few weeks after she disappeared. What about the tinker's boy? The one who was said to have drowned near the King's Mill?'

Now Stanmore shook his head. 'His body was found a year later. And anyway, he was too young - four or five years old. There was that dirty lad whom Matt befriended, who told us he was a travelling musician, and led the local boys astray for a few weeks.' He turned to Edith. 'It may well be him; he would have been about twelve. He set the t.i.the barn alight and then ran away. What was his name?'

'Norbert,' said Edith, promptly and rather primly, her mouth turning down at the corners in disapproval.

'I remember him well. We had only just arrived in Trumpington, and Matt immediately struck up a friendship with that horrible boy. It hardly created a good impression with my new neighbours.'

Stanmore gave her hand an affectionate squeeze, and spoke to Michael. 'After the barn fire, we locked this Norbert in our house, so that the Sheriff could talk to him about it the next day. But somehow he escaped during the night.'

'Poor Norbert!' said Bartholomew, coming up silently behind them, making them all jump. 'Still blamed for burning the t.i.the barn, even though he had nothing to do with it.'

'So you insisted at the time. But he fled the scene of the crime, and that was tantamount to admitting his guilt,' said Stanmore, recovering his composure quickly.

'He fled because he knew that no one would believe his innocence,' said Bartholomew. 'And because I let him go.'

There was a short silence as his words sank in. Michael smothered a grin, and folded his arms to watch what promised to be an entertaining scene.

'Matt!' exclaimed Edith, shocked. 'What dreadful secrets have you been harbouring all this time?'

Bartholomew did not reply immediately, frowning slightly as he tried to recall events from years before.

'I had all but forgotten Norbert's alleged crime.'

'Alleged?' spluttered Stanmore. 'The boy was as guilty as sin!'

'That was what everyone was quick to a.s.sume,' said Bartholomew. 'No one bothered to ask his side of the story and then make a balanced judgement. That was why I helped him to escape.'

'But we locked the priest with him in the solar!' said Stanmore, regarding Bartholomew with patent disbelief.

He turned to Michael, who quickly a.s.sumed an air of gravity to hide his amus.e.m.e.nt. 'Norbert was only a child, and even though he had committed a grave crime, we did not want to frighten him out of his wits. We also thought the priest might wring a confession from him.'

He swung back to Bartholomew, still uncertain whether to believe his brother-in-law's claim. 'How could you let him out without the priest seeing you?'

'The priest was drunk,' said Bartholomew, smiling. 'So much so, that the cracked bells of Trumpington Church and their unholy din could not have roused him. I waited until everyone was asleep, took the solar key from the shelf outside, and let Norbert out. After, I relocked the door, and Norbert disappeared into the night to go to his sister, who was a kitchen maid at Dover Castle.'

'But this is outrageous!' said Stanmore, aghast. 'How could you do such a thing? You abused my trust in you!

And those bells are not cracked, I can a.s.sure you. They just need tuning.'

Edith suddenly roared with laughter, and some of the outrage went out of her husband. 'All these years and you kept your secret!' she said. She reached up and ruffled her brother's hair as she had done when he was young. 'Whatever possessed you to risk making my husband look foolish in front of his neighbours?'

Bartholomew looked at Stanmore thoughtfully for a moment before answering. 'I am not the only one who knows Norbert was innocent. I suppose I still should not tell, but it was such a long time ago that it cannot matter any more. It was not Norbert who fired the t.i.the barn: it was Thomas Lydgate.'

'Thomas Lydgate? The Princ.i.p.al of G.o.dwinsson Hostel?' said Michael, halfway between merriment and horror.

Bartholomew nodded, smiling at the monk's reaction.

'I suspect he did not set the building alight deliberately, but you know how fast dry wood burns. I suppose he had no wish to own up to a crime that might make him a marked man for the rest of his life, and Norbert was an ideal candidate to take the blame, since he was an outsider, and had no one to speak for him.'

'But how do you know this?' asked Stanmore, still indignant about the wrong that had been perpetrated against him in his own house. 'Why are you so certain that Norbert did not commit the crime and Lydgate did?'

'Because Norbert and I saw Lydgate enter the barn when we were swimming nearby; we saw smoke billowing from it a few moments later and someone came tearing out. Naturally curious, we crept through the trees to see who it was. We came across Lydgate, complete with singed shirt, breathing heavily after his run, and looking as though he had seen the Devil himself. If you recall, it was Lydgate who raised the alarm, and Lydgate who first blamed Norbert.'

'But what if Lydgate followed Norbert and killed him to ensure he would never tell what he had seen?' mused Michael, suddenly serious. 'It is perfectly possible that the bones in the Ditch belong to your Norbert. From what you say, he was the right age, and all this appears to have happened about twenty-five years ago.'

'Impossible!' said Bartholomew. 'I received letters from Norbert in Dover a few weeks later to tell me that he had joined his sister, and he wrote to me several times after that, until I went to study in Paris. He has made a success of his life, which is more than could be said had the Trumpington witch-hunters laid their vindictive hands on him.'

'And how could you receive letters without my knowledge?' demanded Stanmore imperiously. 'This is nonsense! How could you have paid whoever brought these messages, and how is it that my steward never mentioned mysterious missives from Dover? Not much slips past his eagle eyes!'

Edith shuffled her feet, and looked uncomfortable.

'Letters from Dover, you say?' she asked. 'From someone called Celinia?'

Stanmore rounded on her. 'Edith! Do not tell me you were a party to all this trickery, too!'

'Not exactly,' said Edith guiltily, looking from her husband to her brother.

'Not at all,' said Bartholomew firmly. 'Norbert's sister was called Celinia. I imagine she wrote the letters, since Norbert was illiterate, and she signed her own name so that no one would know the letters were from him.

Celinia is an unusual name, and Norbert knew I would guess that the letters were from him if she signed them.

Edith simply a.s.sumed I had found myself a young lady.

She did not ask me about it, so I did not tell her.'

'Extraordinary!' said Michael gleefully. 'All this subterfuge in such a respectable household!'

'Really!' said Stanmore, still annoyed. 'And in my own house! The villagers were not pleased that Norbert had evaded justice while in my safekeeping, and neither was the Sheriff when he found he had made the journey for nothing. Thank G.o.d Norbert was not caught later to reveal your part in his escape, Matt! '

'Well I never!' drawled Michael facetiously, nudging Bartholomew in the ribs. 'You interfering with the course of justice, and Lydgate an arsonist! Did you confront him with what you had seen?'

'Are you serious?' queried Bartholomew. 'Since Lydgate was not above allowing a child to take the blame for his crime - for which Norbert might well have been hanged - it would have been extremely foolish for me to have let him know that I had witnessed his guilty act. No, Brother. I have carried Lydgate's secret for twenty-five years and none have known it until now except Norbert.'

'I still cannot believe you took the law into your own hands in my house in such a way,' said Stanmore, eyeing his brother-in-law dubiously. 'What else have you done that will shock me?'

Bartholomew laughed. 'Nothing, Oswald. It was the only serious misdemeanour I committed while under your roof... that I can remember.'

Stanmore regarded Bartholomew with such rank suspicion that the physician laughed again. He was about to tease Stanmore further, when he saw the Junior Proctor, Guy Heppel, hurrying along the street towards them, his weasel-like face creased with concern.

When Heppel reached them, he was breathless, and there was an unhealthy sheen of sweat on his face.

He rubbed his hands down the sides of his gown nervously.

'There is another,' he gasped. 'Another body has been found in the King's Ditch next to Valence Marie!'

CHAPTER 2.

Bartholomew and Michael hurried towards Valence Marie, while Guy Heppel panted along behind them. Bartholomew glanced round at the Junior Proctor, noting his white face and unsteady steps.

'Another skeleton?' he asked.

Heppel shook his head, but was unable to answer, and clutched at his heaving chest pathetically. Bartholomew wondered anew why the Chancellor had chosen such an unhealthy specimen to serve as a proctor, especially since he might be required to control some of the more unruly elements in the University with physical force.

Bartholomew doubted if Heppel could control a child, let alone some of the aggressive, self-confident young scholars who roamed around the town looking for trouble.

Not only was Heppel's appointment a poor choice for the University and the town, it was a poor choice for Heppel himself. Bartholomew studied him hard.

Heppel was a small man, with a peculiarly oblong head. His face was dominated by a long, thin nose that always appeared to be on the verge of dripping, and underneath it rested a pair of unnaturally red lips. He had no chin at all, and his upper teeth pointed backwards in his mouth in a way that reminded Bartholomew of a rodent. Bartholomew supposed Heppel's hair was dark, but the Junior Proctor always wore a woollen cap or a hood, even in church, so that his head was never exposed to the elements.