'More likely he changed his mind,' said Vic after Bruno had left for choir practice.

'What are you getting at?' asked Sebastian, looking up from his prep.

'I think you'll find that when Mr Martinez discovered I was Jewish, and Bruno wouldn't agree to celebrate without me, he called the whole thing off.'

'I could quite understand him calling the whole thing off because you're a wet and a weed, Kaufman, but who gives a damn that you're Jewish?'

'Far more people than you realize,' said Vic. 'Don't you remember when Bruno invited you to his fifteenth birthday party? He explained at the time that he was only allowed to take one guest, and it would be my turn next. We Jews don't forget these things.'

'I still can't believe Mr Martinez would cancel the dinner for no other reason than that you're Jewish.'

'Of course you can't, Seb, but that's only because your parents are civilized. They don't judge people on which cot they were born in, and they've passed that lack of prejudice on to you, without you being aware of it. But sadly you don't represent the majority, even in this school.'

Sebastian wanted to protest, but his friend had more to say on the subject.

'I know some people think we Jews are paranoid about the Holocaust  -  and who could blame us after the revelations that keep coming out about what really took place in those German concentration camps? But believe me, Seb, I can smell an anti-Semite at thirty paces, and it will only be a matter of time before your sister has to face up to the same problem.'

Sebastian burst out laughing. 'Jessica's not Jewish. A little bohemian perhaps, but not Jewish.'

'I can assure you, Seb, although I've only met her once, she's Jewish.'

It took a lot to render Sebastian speechless, but Vic had managed it.

The second incident happened during the summer holiday, when Sebastian joined his father in his study to go through his end-of-year report. Sebastian was glancing at the large selection of family photographs on Harry's desk when one in particular caught his attention: a picture of his mother linked arm in arm with his father and Uncle Giles on the lawn of the Manor House. Mama must have been about twelve, perhaps thirteen at the time, and was dressed in her Red Maids' school uniform. For a moment Sebastian thought it was Jessica, they looked so alike. Surely it was nothing more than a trick of the light. But then he recalled their visit to Dr Barnardo's, and how quickly his parents had given way when he insisted that Jessica was the only girl he would consider for a sister.

'Overall, very satisfactory,' said his father after he'd turned the last page of Sebastian's report. 'I'm sorry you're dropping Latin, but I'm sure the headmaster will have had his reasons for that. And I agree with Dr Banks-Williams that, if you continue to work hard, you've got a good chance of winning a scholarship to Cambridge.' Harry smiled. 'Banks-Williams is not a man given to hyperbole, but he told me on speech day that he's making arrangements for you to visit his old college some time next term, as he hopes you'll follow in his footsteps at Peterhouse, where of course he was himself the prize scholar.'

Sebastian was still staring at the photograph.

'Did you hear what I just said?' asked his father.

'Papa,' said Seb quietly, 'don't you think the time has come to tell me the truth about Jessica?' He transferred his gaze from the photograph to his father.

Harry pushed the report to one side, hesitated for a moment, then sat back and told Sebastian everything. He started with how Sebastian's grandfather had died at the hands of Olga Piotrovska, then moved on to the little girl who had been discovered in a basket in his office, and how Emma had tracked her down to a Barnardo's home in Bridgwater. When he came to the end, Sebastian only had one question.

'And when will you tell her the truth?'

'I ask myself that same question every day.'

'But why have you waited so long, Papa?'

'Because I don't want her to have to go through what you told me your friend Vic Kaufman experiences every day.'

'Jessica will go through far worse if she stumbles across the truth herself,' said Sebastian.

Harry was shocked by his next question.

'Do you want me to tell her?'

Harry stared in disbelief at his 17-year-old son. When does a child become an adult, he wondered. 'No,' he finally said. 'Your mother and I must take that responsibility. But we'll have to find the right moment.'

'There won't be a right moment,' said Seb.

Harry tried to recall the last time he heard those words.

The third incident arose when Sebastian fell in love for the first time. Not with a woman, but a city. It was love at first sight, because he'd never come across anything so beautiful, demanding, desirable and tempting all at the same time. By the time he turned his back on her to go back to Beechcroft, he was even more determined to see his name printed in gold leaf on the school's honours board.

Once Sebastian had returned from Cambridge, he began to work hours he hadn't realized existed, and even the headmaster was beginning to believe that the unlikely might prove possible. But then Sebastian met his second love, which caused the final incident.

He had been aware of Ruby's existence for some time, but it wasn't until his final term at Beechcroft that he really noticed her. He might not have done so even then if she hadn't touched his hand while he was standing at the serving plate waiting for a bowl of porridge. Sebastian assumed it was an accident, and wouldn't have given it a second thought if it hadn't happened again the next day.

He was queuing for a second helping of porridge, despite the fact that Ruby had already given him more than anyone else the first time round. As he turned to go back to his table, Ruby pressed a slip of paper into his hand. He didn't read it until he was alone in his study after breakfast.

See you in Skool Lane at five?

Sebastian was well aware that School Lane was out of bounds, and if a boy was caught there he would get six of the best from his housemaster. But he thought it was worth the risk.

When the bell rang to announce the end of the final lesson, Seb slipped out of the classroom and took a long, circuitous route around the playing fields before climbing over a wooden fence and stumbling down a steep bank into School Lane. He was fifteen minutes late, but Ruby appeared from behind a tree and headed straight for him. Sebastian thought she looked quite different, and not just because she wasn't wearing an apron and had changed into a white blouse and a black pleated skirt. She had also let her hair down, and it was the first time he had seen her wearing lipstick.

They didn't find a lot to talk about, but after that first encounter they met twice, sometimes three times a week, but never for more than half an hour, as they both had to be back in time for supper at six o'clock.

Seb had kissed Ruby several times during their second get-together before she introduced him to the sensation of what happened when their lips parted and their tongues touched. However, he didn't progress much beyond groping and trying to discover different parts of her body as they hid behind a tree. But with only a fortnight to go before the end of term, she allowed him to undo the buttons of her blouse and place a hand on her breast. A week later he located the clip on the back of her bra, and decided that once the exams were over, he was going to graduate in two subjects.