HAVING TAKEN DELIVERY of some Enlightenment, for which he’d have had to pay handsomely at Oxford or Cambridge, Colonel Barnes could hardly deny Daniel a look at the map. They descended to the upperdeck and spread it out on a barrel-head so that Sergeant Bob Shaftoe could brood over it in company with them. ’Twas not one of your noble maps hand-penned on gilded parchment, but a common thing, a woodcut stamped out on foolscap.

He could see a cartographer making a strong case that this part of the world did not rate mapping, for nothing was there but muck, and what features it had changed from hour to hour. The map was pocked with such place-names as Foulness, Hoo, the Warp, and Slede Ooze. ’Twas as if England, when she had worn out certain words, threw them into the gutter-like a man discarding his clay-pipe when its stem was broke down to a nub-and the Thames carried those words down-country along with litter, turds, and dead cats, and strewed them up and down the estuarial flats and bars.

The ever-widening flow swept round to the left just ahead of them. The map told Daniel that a mile or two later it would right its course again and shortly lose itself in the sea. This stretch of river was named the Hope, and an apt name it might be for Sir Isaac.

The Hope limned a hammerhead-shaped protrusion of Kent with no particular boundary between marsh and water, but instead a mile-wide zone between high and low tide-the river halved its width at ebb. Because Daniel knew where they were going, he traced the flat top of the hammerhead eastwards until he reached the semicircular peen at its seaward end. This was labeled the Isle of Grain. The Thames flowed along its northern cheek, the Medway along its southern. The two rivers met just off the Isle’s eastern tip. And like a couple of porters who drop their loads in the middle of the street to engage in a fist-fight over which had right-of-way, these two rivers, at the place where they came together, let go of all the muck they’d been carrying out to the sea. In this way was built up a vast bank, a bulge growing eastwards from the Isle of Grain’s indefinite shore, and as that bulge reached out into the sea, mile after mile, it narrowed, converged, refined itself into a slim prod sticking far out into brackish water between Foulness Sand on the north and the Cant on the south. At the extremity of that bar was the Buoy of the Nore. The estuary yawned east like a viper’s mouth, the Nore spit thrust out in its middle like a barbed tongue. It was in that cursed in-between depth, too shallow for most vessels and too deep for any beast.

But far short of the Buoy, just off the Isle of Grain’s coast, was a place that might be reached by boat or beast, depending upon the tide. It was a tiny thing, like a gnat crawling on the page. Daniel did not have to bend down and squint at those crabbed letters to know it was Shive Tor.

Raising his eyes from the map to scan this indistinct coastline he saw a few places where the old bones of the earth almost poked out, knuckle-like, through the flesh spread over them by the rivers. The Shive, which lay a mile off the high-tide line of the Isle of Grain, was one of those. It even had its own system of pools and bars, echoing the greater system of which it was a part. Daniel guessed that some daft person had long ago seen fit to convey stones out to this stony Hazard and pile them up, making a cairn from which to watch for Vikings or light signal-fires, and later generations of the daft had used it as the foundations of a permanent tower.

He glanced up to find Colonel Barnes gone-called away to lay plans on the quarterdeck-and Bob Shaftoe favoring him with what was very nearly an evil look.

“Do you blame me for something, Sergeant?”

“When last you slept in Tower, guv,” Bob returned-referring to something that had happened on the eve of the Glorious Revolution-“you told me the following tale: namely that you had with your own eyes seen a certain babe emerging from the Queen of England’s vagina in Whitehall Palace. You, and a roomful of other notables.”

“Yes?”

“Well, now that babe is all growed up and living at St.-Germain and phant’sies he’s to be our next King, is it not so?”

“That is what they keep saying.”

“And yet the Whigs call this same bloke the Changeling, and say he’s a common bastard orphan smuggled into Whitehall in a warming-pan, and never passed through the vagina of a Queen at all-at least not until he got old enough to do it t’other way.”

“Indeed, they never leave off saying it.”

“Where’s that put you, guv?”

“Where I ever was. For my father was running about London a hundred years ago proclaiming that all Kings and Queens were common bastards, and worse, and that the very best of ’em was not fit to reign over a haystack. I was raised in such a household.”

“It matters not to you.”

“Their bloodlines matter not. Their habits and policies-that is different.”

“And that is why you consort with Whigs,” said Bob, finally gaining a measure of ease, “for the policies of Sophie are more to your liking.”

“You did not suppose I was a Jacobite!?”

“I had to ask, guv.” Bob Shaftoe finally broke off staring at Daniel’s face, and looked about. They had been traveling northwards down the Hope, but were reaching the point where they could see to the east around the river’s final bend and discover the startling prospect of water stretching unbroken to the horizon.

“My lord Bolingbroke, now, he is a Jacobite,” Bob remarked. Which was like opining that Fleet Ditch was unwholesome.

“Been seeing a lot of him?” Daniel inquired.

“Been seeing a lot of him,” Bob said, turning his head slightly toward the quarterdeck and glancing up at the banner that flew at the mizzen, carrying the arms of Charles White. “And you must know he is the whip that Bolingbroke cracks.”

“I did not know it,” Daniel confessed, “but it rings very true.”

“Bolingbroke is the Queen’s pet,” Bob continued, “and has been ever since he drove Marlborough out of the country.”

“Even a Bostonian knows as much.”

“Now the Whigs-your friend in particular-they have been raising a private army, they have.”

“When we met some weeks ago on London Bridge, you alluded to that, very darkly,” Daniel said. He was now beginning to experience fear, for the first time since he had awoken. Not the bracing, invigorating fear of shooting under London Bridge in a small boat, but the vague smothering dread that had kept him bedridden the first few weeks he’d been back in London. It was familiar, and in that, oddly comforting.

“Whigs’ve been whispering in a lot of ears,” Bob continued, glancing at the place where Colonel Barnes had stood a moment earlier. “Are you with us or against us? Will you stand up and be counted? When the Hanovers reign, shall they know you as one who was loyal, who can be trusted with command?”

“I see. Hard to resist that sort of talk.”

“Not so hard, when there is Marlborough, just over there,” nodding at the eastern horizon, “but contrary pressure, even greater, comes now from Bolingbroke.”

“What has my lord Bolingbroke done?”

“He’s not come out and done anything just yet. But he is making ready to do something that will make some of us uneasy.”

“What is he making ready to do?”

“He’s drawing up a list of all the captains, the colonels, and the generals. And according to White-who lets things slip, for effect, when he is pretending to be drunker than he really is-Bolingbroke will soon order those officers to sell their companies and their regiments, unless they sign a pledge that they will serve their Queen unconditionally.”

“Sell them to Jacobite captains and colonels, one presumes.”

“One presumes,” Bob returned, a bit mockingly.