‘There’s something wrong here,’ he said to himself. ‘Something I’ve seen and heard but it’s always the same: pieces in a puzzle!’

He walked back, climbed through the window, closed the shutters behind him and went out. His two companions were waiting for him in the hall. As Athelstan arrived, Aspinall came downstairs.

‘Are you leaving now, Sir John?’

‘Once we’ve asked you some questions, sir.’ Athelstan smiled.

Aspinall peered at him. ‘Why, Brother, what can I tell you?’

‘Well, first, how is Sir Walter?’

‘I persuaded him to go back to his chamber. He has fallen asleep. I will see to his daughter’s corpse. Sir Walter will probably have it taken to the city and buried in the house of Crutched Friars; that’s where Sir Walter attends Sunday Mass.’

Aspinall sat down on a bench and stretched out his legs.

‘What other questions, Brother?’

‘Does Sir Walter often go into the city?’ Sir John asked. ‘We know he was a customer of the poisoner Vulpina.’

Aspinall glanced up quickly.

‘As you were, sir.’

‘Vulpina’s dead,’ Aspinall said. ‘She died in a house fire.’

‘No, she was murdered.’ Athelstan sat down on the bench next to him. ‘She was murdered, Master Aspinall. Someone wanted to keep the secrets Vulpina held secret for ever.’

The physician shifted uneasily.

‘What are you implying, Brother? Yes, I went to Vulpina. Her collection of herbs and poisons was well known throughout the city. An evil, ruthless woman,’ Aspinall continued. ‘She still had every herb and, yes, I bought poisons from her. Foxglove can be used to quicken the heart and stir sluggish blood. Arsenic, both red and white, can be administered to those who have pains in the gut. Just because a plant is poisonous doesn’t mean it can’t be used to heal. It all depends on the quantities you use.’

‘Did you know Sir Walter purchased potions from her?’

Aspinall was about to deny this but then he shrugged.

‘Yes. Sir Walter bought potions and poisons. I advised him not to but he followed Vulpina’s advice.’

‘Why?’ Sir John asked.

‘For his daughter,’ Aspinall replied. ‘I believe there was nothing that could be done for the poor girl. She was witless, her mind was empty. Vulpina advised Sir Walter differently. He bought herbal remedies to keep her calm and soothe her ramblings: St John’s wort, a little belladonna. Such plants can have a soothing effect when the humours of the mind have been disturbed and are no longer in alignment. Nevertheless, I tell you this, Brother, the deaths which have occurred here are not the work of some common potion. I have never seen a poison with such an effect. You see,’ he saw the puzzlement in Athelstan’s eyes, ‘if you want to poison a man, such potions take effect almost immediately. If I gave a man of Sir John Cranston’s girth a cup heavily tainted with arsenic he would, within a short while, feel its effect. This is different. If you disbelieve me, ask any physician from the city. A man like Routier could take the poison but its effect is much slower to begin with; then it hastens up and the malignancy stops the heart.’

‘So?’ Athelstan asked. ‘The murderer has chosen this potion because it works slowly?’

‘Possibly,’ Aspinall agreed. ‘What I’m saying, gentlemen, is that most poisons kill quickly. If you reduce the grains, illness may occur but not death. This, whatever it is, acts in a simple way: it is prolonged yet still deadly. A good choice, because the assassin certainly doesn’t want to be near when his victim dies.’

‘But if that’s the case,’ Sir Maurice asked, ‘how did the poor wench die?’

I think it was an accident. I really do. Somehow or other, Lucy found this poison and ate it. You saw her yourself: she was constantly picking things up and putting them in her mouth. I have seen her in the hall after meals are finished, eating crumbs from the table.’

‘It’s possible,’ Athelstan mused. ‘I wonder if the assassin intended to kill Routier and one other? Perhaps a sweetmeat was left? A piece of cheese or bread smeared with a noxious substance? Master Aspinall, are the prisoners’ rooms locked?’

‘From what I can gather, at night they are but, during the day, no. They are allowed to take the air in the morning and evening but, for most of the time, the prisoners are kept here in the manor. They talk, sleep or play a game.’

‘So Lucy could have wandered into one of their rooms?’ Sir John asked.

‘That’s possible.’

‘In which case,’ Athelstan declared, ‘those prisoners told me a lie. They said they had searched each other’s rooms to clear any suspicions but nothing was found. Yet here’s a witless maid who not only finds the poison but eats it.’

Cranston took a drink from his wineskin and glanced back up the stairs.

‘It could still be murder,’ he said over his shoulder. ‘Limbright hates the French, the French hate him. The death of his daughter could be seen as a terrible act of vengeance. Master Aspinall, do you think that any of these prisoners have such malice?’

The physician shook his head.

‘They strike me as soldiers, warriors. They might pillage and burn in the heat of battle but deliberately kill a poor madcap?’ He pulled a face. ‘No.’

Athelstan got to his feet. ‘Lucy was found in her own room. The door was open. Is that not right?’

‘So the soldier told me,’ Aspinall replied. ‘The door was open and she was lying on the rushes.’

‘What is the longest time over which a poison can take effect?’ Athelstan asked.

‘In my studies,’ Aspinall shrugged, ‘certainly no more than an hour. However, if I follow your logic, it would be nigh impossible to see where Lucy had gone. She wandered this manor like a ghost.’

‘So, it would be futile to investigate her death?’

‘Yes, Brother, Lucy was frightened of both the French and the guards. She would take nothing from them and only heaven knows where she was in the time before her death!’

Athelstan glanced away. Lucy had certainly taken or been given the poison during the chaos caused by Routier’s escape. Aspinall was right: God knows where she went but, Athelstan reflected, would the girl take something from this physician?

‘Brother Athelstan, Sir John.’ Sir Maurice, arms crossed, tapped his boot against the paved stones. ‘Let us say for the sake of argument that the assassin is one of the prisoners. I know it’s hard to believe but…’

‘I know what you are going to say,’ Sir John interrupted. ‘Logic dictates that there will be two more deaths and the man left alive must be the assassin.’

‘Not necessarily,’ Athelstan said. ‘God knows what de Fontanel will do. He may have the prisoners’ ransoms ready and have them out of Hawkmere. For all we know Routier’s death could be the last. What we should do before we leave Hawkmere is search this manor from top to bottom, and that includes the prisoners’ rooms. Master Aspinall, if you would keep an eye on Sir Walter, my colleagues and I will begin our search. The guards cannot protest. I suppose Monsieur de Fontanel has left?’

‘Yes,’ Sir John replied. ‘He left the hall and walked straight out of the manor.’

Athelstan rubbed the end of his nose. ‘Let’s begin in the garden.’

In the small garret which served as his chamber as well as his cell, Eudes Maneil pulled the bolt securing his door and sat at the small table placed just beneath the arrow slit window. He stared out at the blue sky. A bird whirled by and Maneil felt a pang of envy. The same sky, the same sun as in France. He half-closed his eyes. The Paris markets would be busy now. Its taverns and the cookshops full, the narrow streets a sea of colour, thronged with merchants, their wives, students from the Sorbonne, clerks and scriveners. How nice it would be to stroll those alleyways, flirt with the courtesans then sit in a tavern and enjoy a stew of fresh meat and vegetables, a cup of malmsey or some of the best claret Bordeaux could produce. Maneil’s stomach grumbled in protest. He opened his eyes, his fingers tapping the table. Would he ever see Paris again? The St Sulpice and St Denis had been taken. He had resigned himself to a fairly lengthy and sordid imprisonment amongst the Goddamns, these tail-bearing Englishmen, but now it had grown dangerous. Maneil looked over his shoulder at the door. How on earth had Routier and Serriem been killed? He was sure that both his companions had been careful in what they ate and drank. There was no hidden supply of food. Sir Walter was a tight-fisted miser and the kitchen and buttery were kept under close guard. So was he the murderer? Maneil scratched his chin. Was that why the poor, witless Lucy had died? Had she gone into her father’s chamber? Or was it someone else? There was something he had seen this morning, out there in the garden. He recalled Routier walking up and down then he had left, gone back into the hall. Someone had followed him, he was sure, but who was it?