"Something come for you, Sir," said Will. "From London and the King."

Will amuses me with his Norfolk way with language. I took the thing from him and set it on a walnut card table. The box was tooled in gold and hinged with brass. I lifted the lid. Set out on a velvet cushion was a set of silver-plated surgical instruments.

Will gasped. "What are they, Sir?" he asked.

"Was there a letter with them? No card?"

"No, Sir. Nothing. Only the box. Tell me what they are, Sir Robert."

"They are surgical tools, Will," I said, "used in dissection and cuttings. With these you might remove a stone from a man's bladder, let blood from the vena saphena, lance an apostem, or sew together the two sides of an open wound."

"God save us!" said Will.

"Indeed," I replied. "Indeed…"

And then I took them up, one by one, the hook, the probe, the cannula, the perforator, the hammer, the osteoclast, the dipyrene, the spathomele and, last of all, the scalpel. I turned each one round in my hands and looked at it. I had never seen a set of instruments so perfectly crafted. I am willing to believe that neither Harvey nor Fabricius ever possessed any as fine. There was no doubt in my mind that they had come from the King. It was not necessary for him to send any message with them. They themselves were the message. Returning the scalpel to its velvet cushion, I saw, however, that its silver handle had been engraved with the date, December 1664. I turned it and found on the other side a marking of four words.

I held the thing up and saw, written on the handle of this sharpest and most terrible of blades, this terse exhortation: Merivel, Do Not Sleep.

Chapter Nine. The Overseer

With January came the kind of ferocious winds my mother had mentioned in her prayers for the chimneys. Norfolk people call these gales "The Russian Wind", for this is where they come from, it seems, down from some petrified icy mountain range (the name of which I do not believe I have ever known) and across the northerly oceans to howl round our houses for days and nights together, like the howling of bears and wolves.

Though not as susceptible to cold as, say, Pearce (who can catch any ague from a mere draught) I nevertheless began to notice a most miserable ache in my bones, relief from which could only be had by sitting in a hot bath and having Will rub my backbone with a sponge.

I thus fell to wondering how the men and women of All the Russias survived the dead chill of the winter. I endeavoured to picture in my mind a people I knew nothing of. And this is how they appeared to me: their faces were rubicund and fleshy, all bearing a strong resemblance to the landlord of the Jovial Rushcutters. And their bodies – even the bodies of the women – were fantastically draped about with furs of every kind, furs not fashioned into coats or cloaks but simply hanging and dangling here and there, so that they looked like paupers in tatters, but were inside this assortment of animal skins most comfortable and cheerful.

Now, in my occasional visits to Meg, I let go my stories about the Land of Mar and began a sequence of inventions I entitled Merivel's True Tales of Russia, which succeeded most well with her sweet gullible mind. But more than this, I began to imagine how much more contented all of us at Bidnold would be if we were warm and so placed an order for a large assortment of furs with an ancient London furrier by the name of Jacob Trench. I requested that Trench sew a motley of skins together into simple tabards "to be placed over the head and hang upon the shoulders, thus leaving the wearer's arms free for such tasks as his station in life dictates, but keeping his trunk warm."

Trench being old and meticulous and used to making ermine cloaks and the like, fussed me with tedious letters, requesting that I stipulate precisely what furs were to be used and in what quantities and what colour and quality of silk and satin I required for the linings and furthermore suggesting that I come to London with my staff for individual fittings.

Though I felt most vexed by the delay, I could not behave discourteously to Trench, he being such a trusted friend of my father's. I decided therefore to simplify the operation. I instructed Trench to use only badger skins and to line the tabards not with silk or satin but with a sturdy wool cloth, "such as may be worn even by my groom and my scullery boy." The cost of the tabards was going to be considerable, but so vivid had my imaginary Russians become that I had convinced myself that I at least could not survive the winter without this peculiar garment of fur. The idea, furthermore, that we could wait out the spring dressed as badgers delighted me considerably. No more would I be told I must be quiet to chance upon a badger in the woods of Vauxhall; I would become a badger.

Meanwhile, we waited. Ice formed in the well and the ravaging frost made cracks in the roof tiles. A chimney pot came hurtling down and decapitated a guinea fowl. "How slowly, how slowly time passes," said Celia, warming her hands by the fire. "How shall I endure it?"

There was indeed a kind of sameness to each day. In the mornings, I would persuade Celia to come to my Music Room and sing. My oboe practice had increased tenfold. I would rise at dawn, in the freezing dark and take up my instrument and struggle with scales and arpeggios until the sun crept into the sky but, despite this, I was unable to accompany Celia with any grace at all and, whenever I attempted to do so, she would cease her singing almost at once and pray me not to bother. Thus, there was not, of course, the duet that I had fancifully imagined, but only Celia's voice, singing alone, singing of lost love, while I sat on a chair and stared at her white throat and wondered if time or chance or "the changeful nature of all things" would ever allow me to put my lips tenderly upon it.

At noon, I would dine with Celia, but these meals were becoming irksome to me, owing to the constant presence of Farthingale who was growing more odious and ugly as the days passed, but from whom Celia would seldom permit herself to be parted.

In the afternoons on fine days, I would ride in my park, urging Danseuse to her splendid gallop. Celia's little dog, Isabelle, whom she could not be bothered to exercise, ran snapping at our heels for some of the way and when we outran her would turn and trot home to her mistress who sat dreaming by the fire in her room, reading the poetry of Dryden or doing her eternal petit point.

There was no doubt, Celia was languishing. She was polite to me because she believed the King had made me her overseer. Upon my report of her depended her return to London – or so she understood it to be. But I knew what I was to her: I was a penance she had to endure. I was as irritating to her as my oboe playing, as ugly and discordant. The idea that she could ever love or respect me, I now saw was utterly preposterous. I was on the point of abandoning my ploy to keep her at Bidnold beyond the King's stated time when a most strange incident occurred.

I had spent an evening in my Studio, trying to draw in charcoal the Russians of my unreliable imagination, abandoning my hopeless smudges and scribbles at last towards midnight. I undressed and put on my warmest nightshirt and a nightcap with a little lining of rabbitskin, got into my turquoise bed and fell at once into a heavy sleep.

I woke in some confusion. A hand was pressing my shoulder and a voice was urging me to wake up. I opened my eyes and saw Celia, wrapped in a cloak, bending over me. She was holding a lighted candle and her long hair fell loose about her face, like a curtain.

"Merivel," she said in a whisper of great urgency, "come down. Your bird is dying."

"My nightingale?"