Gawger took a deep breath. ‘Just before nine, Leeman came into the Guard Chamber. I was the only one there. I remember how set his face was. He nodded to me, that was our signal. Then the two of us went back to the Presence Chamber and I took his position by the door while he slipped inside. I waited at the door – in a sweat, I may say.’

‘Had you had a drink?’ I asked.

‘Just a little, sir, to give me courage. But I had only been there a minute when Mistress Odell arrived. I tried to delay her – ’

‘I know,’ I said. ‘You pretended her name was not on the list, and when she insisted on going in, as you opened the door you said loudly that everything must be done properly, no doubt to alert Leeman. She told me. It was that which first aroused my suspicions.’

Gawger lowered his head. ‘Leeman must have hidden somewhere till Mary Odell had passed by him. Then he came out again.’

‘Was he carrying anything?’

‘Not that I could see.’

I thought, the manuscript was small, he could have concealed it under his voluminous cloak. Suddenly I felt angry. ‘What if Leeman had been unbalanced? What if he had planned to murder the Queen, who you are sworn to protect? What then, master gambler?’

Gawger bowed his head again. ‘I have no answer, sir,’ he said miserably.

I went across to the door. Mitchell was waiting outside. I let him in and told him all that Gawger had told me; both, of course, thought that at issue was a stolen ring. ‘It seems you have your answer, Serjeant Shardlake,’ Mitchell said bleakly.

‘I would rather have Leeman as well,’ I answered curtly. ‘Now I will report back to Lord Parr. Do not have this man publicly accused yet. Is there somewhere you can keep him?’

‘Surely now he should be imprisoned and tried for conspiracy in this theft, and for endangering the Queen’s person.’

‘Lord Parr must say,’ I answered firmly.

Mitchell stood up, grabbed the wretched guard, and thrust him back into the antechamber. He returned and sat behind his desk again, looking haggard. I said, ‘I want this kept quiet till you receive further orders.’

‘I place myself in the hands of the Queen. It is my responsibility Leeman is gone.’ Mitchell shook his head. ‘But it is hard sometimes, having to take on these young country gentlemen because their fathers have influence. And these last months have been terrible. All the rumours – I have served the Queen loyally these three years, but since the spring I have never known when I may be ordered to arrest her.’

I did not answer. I could feel no sympathy for him. However well organized, however disciplined a system of security might be, it only took one slip from a man in a crucial position for the line to be broken. ‘Tell me more about Leeman,’ I said eventually.