Rod looked up. “Hey! Would that indicate a cold current?”

“In all probability, Rod.” The robot’s voice sounded a little patronizing.

“That’s the current that would go past Gramarye.”

“It would seem so,” Fess answered.

Rod smiled sourly and tossed his shot glass into the recycler. “Well, enough loafing.” He stood up, strode over to the wall, and began to loosen the clamps that held Fess’s basketball brain. “What happens after that cold current hits the shoreline, Fess?”

“It would probably be warmed by contact with the tropical mainland just south of the cliffs, Rod. Then it would be forced out to sea by the mass of the continent.”

Rod nodded. “From the mainland’s position and contour, that means the current would be sent northeast—back toward Gramarye.”

“Quite possibly, Rod—but you should not hypothesize without sufficient data.”

“All right.” Rod tucked the silver basketball under his arm. “Anything you say, Fess. Besides, it’s time for lunch.”

“You know robots do not eat, Rod.”

“That’s funny, I thought you might be in the mood for a few bytes…”

The sentry at the door to the solar stepped in and announced, “The Lord High Warlock, Majesties.”

Rod pushed past him and stopped, taking in the tall, saturnine man with the lantern jaw who stood facing Catharine and Tuan. His face was tanned and leathery. He wore a short brocaded coat, fur-trimmed, over doublet and hose, and clenched a round hat in his hands.

Then Rod remembered his manners and turned to bow.

“Your Majesties! I’ve been doing a little research.”

“I trust our new source will aid it, Lord Warlock.” Catharine nodded toward the stranger. “May I present Master Hugh Meridian, captain of a merchant ship.”

“Merchant ship?” Rod turned to the seaman, startled. “I didn’t know we had any.”

“In truth, we do, milord.” The shipmaster gave him a frosty bow. “ ‘Tis quicker, and less costly, to ship goods along the coastline than to haul them over the highways.”

“Of course; it would be. I should’ve thought of it. But how did you learn that we needed seafaring advice, Master Meridian?”

“We sent word quickly to the fisherfolk at Loguire’s estates, and those in Romanov. Each claimed they did know there were currents sweeping past the shore, farther out than they generally sailed,” Tuan answered. “Yet all claimed further that they knew naught more.”

“Of course; they couldn’t know where the currents went.” Rod frowned. “They never go out farther than they can come back, all in one day. But they did know about you, Captain?”

The captain nodded. “Ever and anon, the lords hire out their fisherfolk to be my crews, milord. They know of me, aye.”

“And you know where the currents go.” Rod started to look for a chair, then remembered it was bad form to sit in Their Majesties’ presence. Brom could; but Brom was special. “At least you know where they go, around the Isle of Gramarye.”

“I do, milord—though it might be better to say I know where the currents do not go.”

“Really? There’re currents all around the island?”

“Not quite; the western coast is bare of them.”

“Odd.” Rod frowned. “Can you show me on a map?”

“Map?” Captain Meridian looked lost for a second; then he fumbled a small book out of his belt-pouch. “Aye, I can show where I ha’ writ about it in my rudder; yet is’t not easier to hear it?”

“No, no! I want you to show me, on…” Rod let his voice trail off, remembering that medieval people didn’t have maps as he knew them; the idea of graphing out the outlines of a coast was foreign to them. Maps had had to wait for the Renaissance, with its concept of continuous, uniform space. Rod turned to the door, stuck his head out, and advised the sentry, “Parchment and pen, soldier—and quickly.” He turned back into the room. “We’ll have one in a minute, Majesties. Master Meridian, imagine yourself being a bird, flying over the Isle of Gramarye, looking down on its coasts.”

Meridian smiled. “ ‘Tis a pleasant enough conceit, Milord Warlock—but I cannot see that it serves any purpose.”

“Ah, but it does!” Rod held up a forefinger. “I’ll draw you a picture of the coasts as the bird would see them.”

The door opened, and a round-eyed page popped in with parchment, pen, and ink.

“Thank you, lad!” Rod seized the tools and marched to the solar’s table. He rolled out the parchment and began sketching. “This is the western coast, Captain Meridian.” He drew a long jagged curving line, then pointed back toward its top. “There’s the Duchy of Savoy, and here’s Hapsburg.” He turned the bottom of the line into a point, and began to draw a lateral line, full of jags and gouges. Captain Meridian followed his hand, frowning, trying to relate this ink-scrawl to the realities of rocks, tides, currents, and distant hills seen through the mist. Finally, his face lit and his finger stabbed down at the southernmost curve. “Yonder is Cape Souci! Many’s the time I’ve had to shorten sail to keep the southwesterly gale from rolling my ship over as we rounded that headland!”

“Southwesterly?” Rod looked up. “Does the current come past there?”

Captain Meridian nodded eagerly. “Aye, aye! ‘Tis that very place. Westerly of that, milord, I know naught of the current; indeed, I know naught at all, for never have I had any occasion to sail there. But north of that, there is no current; the whole westerly shore hath naught but tides and local stirrings.”

Rod nodded. “That’s where the current comes to Gramarye, then. This is the southern shore, Master Meridian.” He drew a long curve; then his pen wandered north. Meridian watched spellbound as the outline of the island took shape before him.

“ ‘Tis witchcraft,” he sighed when Rod was done, and pointed at the map. “Yonder is the Bay of Roland, and hither lies the coast of Romanov. This is the mouth of the River Fleuve, and yon peninsula is Tristesse Point.” He looked up at Rod. “Thou art indeed the Lord High Warlock! By what magic canst thou tell the shape of this coastline so well?”

“Oh, I know some people who do a lot of flying,” Rod shrugged. “Anything I’ve missed?”

“Not of the coast itself.” Meridian turned back to the map and pointed. “But you must draw the Grand Skerry here, midway down the west coast—and Geburn Rock here”—his finger jabbed at the map just off the coast of Romanov—“and… but, another time.” He waved the thought away. “There are a host of such things that are not on your map, but that any seafarer would need to know of.”

“Such as currents?” Rod dipped the pen in the ink and handed it to him, feather first. “Would you show me where they lie, Master Meridian?”

The captain’s eyes widened. Slowly, he took the pen and began to sketch. Rod watched flowing, sweeping lines grow from the pen-point, coming from Heaven knew where at Cape Souci, flowing along the southern coast, sweeping around the eastern coast and the Baronetcy of Ruddigore, around the Duchy of Bourbon and along the northern coast, past Romanov, past Hapsburg—and out into the unknown again.

Meridian set the pen back into the inkwell with a sigh. “Better I cannot do, Lord Warlock.” He looked up at Rod. “I know no more.”

“Well, I might happen to be able to add something there.” Rod took up the pen. “One of our young warlocks just made a quick, overnight trip into the west, you see.” He began to sketch a concave curve in the lower left-hand corner of the parchment. “He saw something like this…” The curve hooked into a right angle with an upstanding bump. Rod sketched a dotted line across the base of the bump, then reached up to begin sketching where Captain Meridian had left off with the current. “He was following that last party of raiders home, and from what he said, I’d guess they sailed along this route—which means the northern current flows down to the southwest, like this…” His pen strokes swept down to the mainland, then turned sharply to flow around the bump. “You know, of course, Master Meridian, that Gramarye is only an island, and that there’s a mainland over to the west, a continent.”