Goodwin said nothing but stared at Frances as if looking on the face of doom.

‘When your son worked as a caretaker at the school, was it a part of his duties to fetch coal from the cellar?’

Goodwin hesitated as if composing a suitable reply.

‘Do not dissemble,’ she warned. ‘If you do not answer the question, I am sure I can find others who will.’

Reluctantly, Goodwin nodded.

‘What did he find there? Or perhaps I should be asking another question. What did he put there?’

As Frances waited for a response she studied the doctor’s face. ‘I have seen that look before when I ask a question and the person I am asking thinks about how they might manage to tell me as little as possible. I am then obliged to come back again for the information they have been concealing. Why not save us both some time and tell me all?’

Goodwin gave a wry smile. ‘Ah, you are very persuasive, Miss Doughty. I can see how you have achieved your reputation.’

‘I understand that you feel the need to protect your son; he undoubtedly also feels the need to protect you. You know that he made a confession to the murder of Mr Eckley when you were arrested? Fortunately the police were able to establish very quickly that he knew nothing of the matter. Such efforts are always misguided. I beg you not to attempt the same.’

He gave in. ‘You are correct of course, I did recognise that the sign was that for a skeleton. And since I knew you had been looking into Isaac’s activities on behalf of Mr Eckley I guessed that it was his conversation you had seen. I spoke to him, and he admitted what had occurred. About three or four years ago there was a visitor to the school, a man who had difficulty walking. He took a wrong turn by chance, stumbled, and fell down the steps of the cellar. His neck was broken and there was nothing Isaac could do. I know he should have gone for help, but he was afraid he would be blamed and so he concealed the body under some wood. Isaac was the only person who went into the cellar, to fetch things from the stores or carry coal. There was some disinfectant he used for the drains and he scattered it on the stairs so no smells would penetrate into the hallway when the door was opened.’

‘When did this happen?’

‘Isaac can’t recall the exact date, but it was towards the end of the year.’

‘November 1877?’ asked Frances, recalling that Mrs Eves had last seen her limping tenant in that month.

‘Possibly.’

‘And I suppose the body might have remained there forever if he had not been dismissed from his post as a result of the school’s banning of sign language.’

‘True. As you may imagine when Isaac realised that another person would be replacing him and going into the cellar, he had to do something quickly. The body had made a meal for flies and vermin, which Isaac had chosen not to discourage, and was by now a skeleton. He burnt most of the clothes in the kitchen range and got a scolding from the cook for his efforts because of the smell. He dared not try to burn the shoes and bones.’

‘So he put them in a coal sack and then –’ Frances paused. ‘But when did this happen? I can guess that these are the remains that were found in the empty house in Queens Road, but if it was after your son knew he had been dismissed the house was boarded up and he could never have got inside.’ She thought again. ‘Oh, yes of course, I am very unobservant. He asked the children to dispose of the sack.’

‘Not asked, precisely. They saw him with it, and he confessed what had happened. He was thinking of putting it in the ash bin, but they persuaded him that it was better concealed somewhere far from the school so if it was found there would be no connection.’

Frances had been quickly leafing through her notes to find the reports she had obtained from Ratty and Tom. ‘The boys who walked to and from school would have passed by the house on their way and known about it. And there was some damage done to the hoardings at that time, enough so a child could get through but not an adult.’

‘Empty houses have always been a temptation for boys, and there is so much building going on in Bayswater. We warn them of the dangers, of course, but they will seek adventure.’

‘You do understand that Isaac has committed a crime in concealing the body?’

Goodwin nodded ruefully. ‘I know, I know, and I think it would be wise if he confessed. I shall ask him to do so, and I will be happy to pay any fine that may result. I only hope the boys will not incur too much blame.’

‘The boys are just children, and a court might be lenient, in fact it is possible that the police might decline to take any action against them.’

‘I hope so.’

‘So it only remains to discover who the man was. We have one clue. A ring was found in the cellar by the charlady. That ring was the property of Mr Edwin Antrobus, and it never left his finger.’

Goodwin looked shocked. ‘No, no, he wasn’t – I mean he can’t have been —’ he stopped.

Frances raised an eyebrow. ‘The visitor wasn’t Edwin Antrobus? How do you know?’

‘Isaac described him to me,’ explained Goodwin weakly.

‘Yes?’

‘He – he walked with a limp. Edwin Antrobus did not.’

‘You did not see the man for yourself?’

‘No.’

‘I am not convinced.’

‘Well – not on that occasion. He might have been the same man who was here once before. He was unknown to me. He had a business proposition that I declined. He must have returned.’

‘Describe him.’

‘Respectably dressed. Between thirty and forty. He limped. I can recall nothing more.’

‘Did he carry a leather travelling bag?’

‘I can’t be sure.’

‘You don’t recall whether or not he was wearing a ring?’

‘No.’

‘Did he give a name?’

‘He did but I really can’t recall it.’

‘And what was the nature of the proposition?’

An expression of pain suffused the doctor’s face. ‘He was a scoundrel. He had heard all those old rumours about me and thought he could use them for gain.’

‘He tried to blackmail you?’

‘Yes. I told him to leave. There is nothing that can be proved against me because there is nothing to prove.’

‘But a man in your position cannot afford even rumour, however ill founded. Did this concern your meetings with Mrs Antrobus?’

‘He had somehow learned of those innocent meetings and made a wholly false assumption. I put him right on the matter.’

‘Is that the reason you stopped meeting Mrs Antrobus? Even as a friend? To avoid misunderstandings?’

Goodwin dropped his gaze to his desk, avoiding Frances’ eyes. ‘Yes, it is.’

‘There is more. I need to know it.’

He swallowed uncomfortably on a dry throat and went to get a glass of water. ‘Does nothing escape you? Well, you are correct. He accused me of a crime of which I am wholly innocent, a crime which I would not even have thought of committing, let alone actually committed.’

‘What crime is this?’

‘He supposed that I was love with Mrs Antrobus and that I had killed her husband so as to marry her. He could not have been further from the truth. I do not love the lady and have never aspired to marry. Isaac and my pupils are all the family I could possibly wish for. It seemed wise, however, to protect the lady’s reputation by conducting no further meetings with her.’

‘Did Isaac know about these threats?’

‘No, how could he have done? I certainly didn’t tell him.’

‘Can you recall the date of that visit?’

‘I am sorry, no.’

Frances rose to leave. The question of who the visitor was and how he had come by Edwin Antrobus’ ring was still a mystery but one she did not believe Dr Goodwin could help her solve. ‘I will leave it to your conscience as to whether you tell the police what has occurred, but I am confident you will do the right thing.’

‘You may rely on me for that. It has weighed heavily on my mind ever since Isaac confessed the truth, and I too believe he will not incur too great a penalty.’