The nature of the letter also puzzled me. Paul was a zealous supporter of the Catholic League; you would suppose that he would support any plot to topple the degenerate King and replace him with a righteous Catholic. What could be so terrible about the harm intended by ‘Circe’ that it could have induced the fervent Paul to consider betraying not only the sacrament of confession but his loyalty to the entire cause of the League? And who could have confessed such a conspiracy to him? I did not have the answers to these questions. I could only guess that, somehow, the Duke of Guise had anticipated betrayal and taken measures that he hoped would prevent it. But if so, that meant he must also know about the confession; presumably that person too would have to be silenced. Perhaps the killer would be able to shed more light on the plot once he was in the custody of the royal guard.
I was jolted from my theorising by the sound of a key in the lock. Wedged tight into the recess, I leaned across to make sure I could see through the narrow gap between the two stacks of boxes. Ignoring the pain in all my joints, I held myself still, terrified that the slightest sound would give me away and ruin my advantage. Despite what I had promised Cotin, I had no intention of allowing the killer to leave and hide his evidence. I was confident that, with surprise on my side and the help of a weapon, I could easily overcome him and force him at knifepoint to the gate, where the King’s soldiers would be waiting.
The door creaked open and a faint circle of light appeared; behind it, the outline of a figure, the cowl of his habit pulled up over his head. I heard the door click shut and the light brightened; I realised he had draped the lantern with a cloth to dim it on his way through the grounds. I held my breath, every fibre tensed. He crossed immediately to the boxes of books, set down his light and crouched to pull away the first crate. Silently, I eased out from my hiding place and drew my knife. The light from his lantern puddled on the floor; I caught a glimpse of his profile as he straightened, clasping the bundle with the statue to his breast with both hands like a Madonna holding an infant. I stepped forward; the movement startled him and he whipped around to face me, frozen with surprise.
‘Keep quiet, don’t move, and you won’t come to harm,’ I said, holding the point of the knife towards him. ‘I need you to come with me. Bring that with you.’
His face was still hidden in shadow, but I saw his eyes flick down to the statue, as if he had forgotten he was holding it. In an instant he seemed to recover his power of thought; he leaned back and, with considerable force, hurled the statue at me so that it struck me in the chin. I staggered backwards, touching my fingertips to my face, and in that unguarded moment he swung a punch that connected with the left side of my jaw. I dropped the knife; my mouth filled with blood as I struggled to recover my balance, but he reached out and pulled at the stack of crates beside us so that it toppled forwards. I managed to jump back as boxes of stone, glass and metal crashed across the floor, trapping me in the corner. I was fortunate that no flying debris struck me, but by the time I had clambered over the heap, he had already grabbed the lantern and plunged me into darkness as he closed the door behind him.
Cursing, I stumbled blindly across the room, spitting blood, relieved to find that he had not locked me in. Outside the mist was so thick now that I could not see more than four or five feet in front of me, but the lantern was just visible as a pinprick of fuzzy light between the bent shapes of trees ahead. I lurched after it, tripping on clumps of grass, branches clawing at my clothes, damp skeins of cobweb clinging to my face as trunks loomed out of nowhere and the light bobbed and grew fainter. Moonlight barely silvered the layers of vapour that hung heavy as smoke in the air. After a few paces I could no longer see the lantern at all. I thought I heard a low laugh from just behind my left shoulder, though it might as easily have been