Daniel had already hiked off into the adjoining park and found a winding lead between shrubs and trees. Johann followed him for a minute or so, until his peripheral vision was darkened by the crown of an enormous oak. In the distance he could hear voices conversing, not in German. It struck his ear rather like a sheet of tin being wobbled.

He nearly tripped over Daniel, who had squatted down behind a bush. Johann followed his example, and then his gaze. Gathered a stone’s throw away beneath the spreading limbs of the oak, and looking for all the world like artists’ models posing for a pastoral scene, were three of the English Tories who had come with Daniel from London.

“Sir, my admiration for your work is mingled with wonder that a man of your age and dignity is out doing things like this.”

Daniel turned to look him in the eye; and his creased face was grave and calm in the morning light. He looked nothing like the daft codger who had come to dinner yesterday evening and embarrassed the other English by dribbling wine down his shirt-front.

“Listen to me. I did not wish to be summoned by your Princess. Summoned, I did not wish to come. But having been summoned, and having come, I mean to give a good account of myself. That’s how I was taught by my father, and the men of his age who slew Kings and swept away not merely Governments but whole Systems of Thought, like Khans of the Mind. I would have my son in Boston know of my doings, and be proud of them, and carry my ways forward to another generation on another continent. Any opponent who does not know this about me, stands at a grave disadvantage; a disadvantage I am not above profiting from.”

It was then that the hoof-beats out on the road turned into soft thuds as the lone rider from Hanover drove his mount off the beaten track and into the park. He was headed directly for the oak. At a glance they could see he was richly attired, hence, probably had begun his ride in the Leine Schlo?. On a second look Johann recognized him. He crouched down lower and spoke into Daniel’s ear: “That is the Englishman-supposedly a staunch Whig-Harold Braithwaite.”

“IT SEEMS SO OBVIOUS in retrospect,” Johann lamented, a quarter of an hour later, after they had stolen back through the park to the Allee, and begun walking back toward Herrenhausen Palace.

“Great discoveries always do,” Daniel said, and shrugged. “Ask me some day how I feel about the Inverse Square Law.”

“He and his wife came here, what, five years ago, just as things began to go awry for the Whig Juncto. Oxford and Bolingbroke were plotting the Tory resurgence, getting the Queen’s ear-as I recall, there had been a run on the Bank of England, occasioned by rumors of a Jacobite uprising in Scotland.”

“Is that what Braithwaite said when he showed up here penniless? That he’d been ruined in the bank run?”

“He mentioned that the Mobb had rioted against the Bank.”

“That it did. But this has little to do with Braithwaite. He is the sort of Englishman who is exported with great enthusiasm by his countrymen.”

“There were rumors-”

“Just enough, I am certain, to make him out as a saucy picaroon, and get him invited to dinner.”

“Indeed.”

“The true story is depressingly familiar. He spent his inheritance gambling. Then he became a highwayman-not a very good one, for on his first outing he scuffled with one of his victims, and gashed him with a cutlass. The wound suppurated, the victim died, the victim’s family-Tories, who had money-posted a reward so high that every thief-taker in London cleared his calendar. Braithwaite fled the Isle, perhaps the only prudent thing he has ever done.”

“He painted himself as an arch-Whig.”

“In that there was some truth, for his oppressors were Tories. But he has no principles whatever.”

“That much is now proved. But why would such a man act as a spy for the Tory Lords?”

“His legal situation is awkward. This means he might benefit enormously from some adroit manipulation of certain affairs in London. He must make his peace with whatever Faction has the power to assist him; behold, the Whigs are out, and the Tories are in.”

“What did you think of the letter?” Johann asked; a non sequitur that prompted Daniel to twitch his head around. They had come so close to the end of the path that they could smell the green fruit in the orangerie, and hear the stables and kitchens awakening: sharp crisp sounds hushed and muffled by the distant teeming of the great fountain.

“What do you mean, mein Herr?” Daniel asked, slipping unconsciously into etiquette now that they were in earshot of a palace. For they had moved off the Allee and were passing between stables toward the parterres at the garden’s northern end, where a few early-rising nobles were already out stretching their legs.

Johann continued, “I mean, how was it written-the letter you received from Caroline? Was it in French?”

“No, English.”

“Good English?”

“Oh yes, very proper. I see where you are going now.”

“If it was in proper English, then her English tutor must have helped her write it. And that is Mrs. Braithwaite.”

“It shall be most awkward,” Daniel pointed out, “if the mistress of the Prince of Wales proves to be a spy for men who are dead set against his family acquiring the Crown.”

“I know the woman. She is immoral but not malicious, if you know what I mean. After she helped Caroline write that letter, she probably mentioned it, innocently, to her husband, who, as we have seen, is the true spy.”

“Difficult to dispose of him, without a scandal in the household-” Daniel observed.

“Oh, not really,” Johann murmured.

Now that they had entered the garden, his notice had been drawn by a coach and four emerging from the hill of mist that shrouded the environs of the great fountain. As its outlines became more distinct, he remarked, “That looks like my mother’s carriage,” and then, “but the lady looking out the window, there, is not my mother but Princess Caroline. Odd for them to ride, when they could walk. I shall go and bid them good morning.”

“And I shall excuse myself,” said Daniel Waterhouse, “as there is no plausible excuse for me to be seen in such company.”

“MRS. BRAITHWAITE, I SHALL depend on you to have the ivory thing near to hand at all times,” said Princess Caroline.

“I know just where it is, my lady.” Henrietta Braithwaite rose from the stool where she had been fussing with the Princess’s wig, twirled herself about in beautiful and attention-getting style, and crossed the room to where a selection of implements was arranged on a tabletop. These could have been mistaken for the trade-tools of a cook, physician, or torturer, save for the fact that the surface on which they rested was a slab of polished pink marble, topping a white-and-gilt dressing-table-cum-sculpture done up in the new, hyper-Barock style named Rokoko. It was adorned, for example, with several cherubs, bows drawn, eyes a-squint as they drew beads on unseen targets, butt-cheeks polished to a luster with jeweler’s rouge. It had, in other words, all the earmarks of a gift that had been sent to the Princess by someone with a lot of money who did not know her very well. On it were diverse mortars and pestles for compounding makeups; trowels, spatulas, and brushes for inflicting it; and certain objects whose purposes were not so obvious. Henrietta picked up a long-handled implement whose business end consisted of a gently curved tongue of polished ivory, stained pink around the edges from use. “See to it that it has not become stiff, as sometimes happens when these things get old,” Caroline commanded, “and inspect it for any rough edges-last time, I got an ugly welt.”