TWELVE GRAINS IS A FORTIETH of an ounce; and gold being the densest thing in the world, a fortieth of an ounce is smaller than a pea. Yet such is the precision of the Goldsmiths’ techniques that they can conduct a reliable assay with so tiny a sample. To take the twelve grains from a single coin would defeat the purpose of the whole undertaking, for such a test might be queered by a freak of chance: a meaningless surplus or deficit of gold in one particular coin. Hence the mixing and sampling that has led to Mr. Threader’s having a dozen guineas set out on the cloth before him. He has come armed with a pair of mighty long-handled snips. He stands up for better leverage, and in short order has cut each of the dozen guineas into halves. He then works his way down the row of twenty-four half-guineas, snipping off their sharp corners. There ought to be forty-eight of these. They are so tiny that they appear to Daniel as points of fire on Threader’s black velvet cloth, echoing the stars painted on the ceiling of this chamber. Like a mad demiurge, Mr. Threader creates a little cosmos crowded with half-moons and strewn stars. He then begins to impose Order on his own Chaos, picking up the halved guineas and setting them to one side, while herding the stars into a globular cluster in the middle. It seems that his old fingers have difficulty picking up the wee bits, for he raises his hand to his mouth once or twice and licks his fingertips, like a scholar who is having difficulty getting traction on a page. Everyone is watching this closely, though Daniel’s mind is a bit distracted still because of that business with Isaac. He turns his head thataway, and notes that the Lord Privy Seal has ventured out of the side chamber where he and all of the great big-wigs are supposed to be awaiting the verdict of the Jury. His lordship has got it into his head that he is going to say hello to Sir Isaac, and turns that way purposefully. But Catherine has read his mind, has tracked his doddering progress, giving him the evil eye the whole way. He’s too blind or careless to notice. She steps into his path. Daniel averts his gaze, not wishing to see the Catastrophe of Manners that’s in the offing.