‘My clerk,’ he announced grandly, ‘is correct. So you, Father, the master poisoner, struck again. You bought your poisons from Foreman, mixing them deliberately so the wine cup smelt rank and offensive, to ensure Brampton got the blame. But Allingham was different. He took a poison which was more difficult to trace. After his mid-day meal Allingham went back to his chamber and fell asleep. What he did not know was that the handle of his door had been smeared with poison. The same trick you had played on Sir Thomas, but you were sure it would work again.’

Cranston stopped to refill his cup, rather shakily so the wine spilled over on the table. But the coroner, in full flow and bent on refreshment, didn’t give a fig.

‘Brother Athelstan,’ he announced expansively, ‘will summarise my conclusions.’

Athelstan hid his smile. Cranston was amusing but the hard-faced priest, the wolf in sheep’s clothing, was not.

‘You see, first, Allingham had a nervous gesture. Do you remember? His hands were constantly at his lips, fluttering up and down like a butterfly. During his final sleep, Father Crispin here probably locked him in his chamber. Allingham wakes, and finds there is no key. Nervous and agitated, he tries the door; all the time his death-bearing fingers are going to his mouth. He feels ill, goes back to the bed where he collapses and dies. The door is forced, the priest makes sure he is there, the key is dropped on the ground. Naturally, people would think it fell due to the door’s being forced. Of course, Crispin here acts the perplexed innocent. He poses the question, if Allingham had a seizure, why did he not try and open the door? Strangely enough, while trying the lock our murderer holds a napkin which he had been using to mop up some wine he had spilt. He examines the handle, using the napkin to gain a better grip. Of course, what he is really doing is cleaning the poison off.’ Athelstan dug beneath his robe and brought out the soiled cloth he had begged from the laundress. ‘This is the cloth.’

‘It can’t be!’ Fortescue suddenly shouted.

‘Shut up!’ the priest yelled at him, his eyes and face full of hatred. ‘Shut up, you idiot!’

‘Why can’t it be?’ Cranston asked softly. ‘Isn’t it strange that you should remember what happened to an innocent napkin?’

Athelstan held his breath. Would a confession come?

‘I only did what he asked,’ Crispin whispered.

‘Who?’ Cranston asked softly.

‘Fortescue, of course!’

The Chief Justice looked up, his face white with terror.

‘I asked the priest to get the secrets Sir Thomas held. I did not plan murder.’