‘Only because Mistress Slanning said some words that made me think she was afraid of him. How strange.’ Though it was strictly a breach of confidence, I was sure of Coleswyn’s honesty now, and I decided to tell him what Isabel had said about her brother – the things he has done.

When I had finished he shook his head. ‘I cannot think what that might mean. Master Cotterstoke is very much the respectable citizen.’

‘As is Mistress Slanning. Has it struck you how the wording of the old woman’s Will was very odd? The specific reference to wall paintings.’

‘Yes. It is almost as though old Mistress Cotterstoke wished to provoke a quarrel between her children, laugh at them from beyond the grave.’ He shivered.

‘She must have known they loathed each other. Perhaps there were not two members of this family hating each other because of Heaven knows what old grievance, but three. The mother, too,’ I finished sadly.

‘Possibly. But I know nothing of their early days. Only that their father, a Master Johnson, who can be seen in the picture, died not long after it was painted. And that their mother soon remarried, to Cotterstoke, who took over her late husband’s business. But he, too, soon died, leaving everything to his widow. There were no other children, and Edward and Isabel took their stepfather’s name.’

‘That tallies with what I know,’ I answered. ‘It does not sound as though there was an evil stepfather in the picture.’

‘No.’ Coleswyn stroked his beard again. ‘If we could find what has brought them to this – ’

‘But how? Have you noticed that, though the two of them constantly abuse each other, it is always in general terms; nothing is ever specified.’

‘Yes.’ Coleswyn nodded slowly.

I heard the Inn clock strike twelve. ‘Brother, I must go to my appointment. But I am glad you came. Let us each consider what we may do.’ I stood and offered a hand. ‘Thank you for speaking to me. So many lawyers would happily drive this witless matter on to Chancery, for the profits.’ Bealknap would have, I thought, except that he would never have had the patience to deal with Isabel’s carping and sniping. He had ever preferred some crooked land deal where everything was done in the dark.

Coleswyn smiled shyly. ‘And to seal our little agreement, perhaps you would do me the honour of dining with my wife and me. Perhaps on Wednesday, after the inspection.’

The rules prevented barristers on opposing sides from discussing their clients behind their backs, but dining together was not prohibited. Otherwise, what would have become of our social lives? ‘I would be glad to. Though I have a separate matter that is taking much time just now. May I take the liberty of agreeing subject to the possibility I may have to cancel at the last moment?’

‘Certainly.’

I sighed. ‘This other matter makes the Cotterstoke case look – trivial.’