"You know something. What is it, d.i.c.k?"

"I know the car," d.i.c.k said grimly; "but it isn't nice to think your own friends came near killing you."

"You're sure?"

"Positive. I thought I recognized the hum she makes on the top gear, and when I was close behind them at the bottom of the glen, I saw the tail-lamp had a cracked gla.s.s and a dinge in the top. It isn't a coincidence that our lamp's like that. I remember when Watson dropped it."

"Staffer certainly wouldn't lose control of his steering."

"No," said d.i.c.k; "he's as steady as a rock. So's Watson. You don't often find a lowland Scot of his type jumpy."

Whitney lighted a cigarette and leaned back, watching the others.

"Staffer was going to Glasgow," Andrew argued.

"Yes; the hydraulic ram that pumps our water had broken down and he meant to see the makers. He told me he might not be back for a few days."

"But would he return by Edinburgh? Had he any business there?"

"None that I know of; we deal with Glasgow. I wanted him to come up to Edinburgh not long ago, but he wouldn't. Said he didn't know anybody in the place and there was nothing to do."

"After all, you may have been mistaken about the car."

"Oh, no," said d.i.c.k; "but we'll talk about something else. I don't like to think that Staffer nearly finished me--and he wouldn't feel happy about it. Of course he didn't recognize us; and, on the whole, I think we'd better not mention it to him."

"I agree with you," Whitney said; and they planned to ship the damaged machine to Hawick and to walk back across the hills.

On their return to Appleyard, Whitney watched Staffer closely when d.i.c.k explained that they had been delayed by an accident in the glen at Teviot-head. He showed only a polite interest in the matter, and when Whitney talked about Edinburgh, he remarked that he found the city disappointing and seldom visited it.

A few days later, they all sat on the terrace one calm evening when Watson came back with the car and gave d.i.c.k and Staffer some letters.

"From Murray," d.i.c.k announced when he had opened his. "They're going to search the Colvend country next Thursday, and he suggests that we might like to join, though he hints that he's not allowed to give us much information."

"What does he expect to find?" Staffer asked. His tone expressed indifference, but Whitney suspected that it covered a keen interest.

"He doesn't say. Somebody working a wireless installation, I imagine."

"And is Thursday particularly suitable for that kind of thing?"

"It's Dumfries' early-closing day. They can get a lot of motorcyclists then. Murray states that the coast and moss-roads will be watched."

"You ought to go," Elsie interposed. "Mr. Whitney would enjoy a day upon the heather."

"An opportunity for combining a pleasant excursion with a patriotic duty!" Staffer remarked. "Well, the high ground from Bengairn to Susie Hill will need some searching. No doubt, they'll push across the moors toward Black Beast?"

"Murray doesn't say, but it's probable. I don't know whether the military authorities have the spy mania; but if there is any ground for suspicion, it can do no harm to draw the Galloway moors. What do you think, Andrew?"

"I'd try the hills farther east."

"About Eskdale, of course?" Staffer said with ironical humor.

"Well," Andrew replied, "I don't claim much strategical knowledge, but if we take it for granted that a hostile force could be landed on our east coast--"

"Rosyth's being a naval station would make that difficult. But go on."

Beginning rather awkwardly, Andrew worked out a supposit.i.tious plan of campaign, and to Whitney, who had just been over the ground, it seemed a very good one. The scheme he outlined certainly appeared practical; and Whitney saw that Staffer was more interested than he pretended, and that his objections were designed to draw Andrew on.

Both showed a knowledge of military needs and history; and when Staffer mentioned Cromwell's retreat on Dunbar, Whitney thought Andrew's defense of his favorite route across, instead of around, the Lammermuirs was good. He noted that Staffer did not claim as much local knowledge; indeed, he thought he was careful not to do so.

"I'm not convinced that we have much to fear, but you have worked the thing out very well," he said at last. "Have you thought that the War Office might find something to interest them in your views?"

Andrew flushed.

"They're probably bothered enough by amateur strategists," he replied.

"Of course, I may be all wrong; but if there really did seem any need for it, I'd try to get somebody with influence to put my ideas before them."

Staffer folded a letter he had been reading, and looked at his watch.

"I must send off a telegram," he said, and left them.

"Well, Andrew, are we going on this spy hunt?" Whitney asked. It sounded promising to him.

"I could take the boat to Rough Firth. Then we might go on to Wigtown Bay, where you could see your people. Will you come, d.i.c.k?"

"Yes--as far as Rough Firth; but I don't know about the rest. Small boat sailing needs an acquired taste. You have to get used to eating half-cooked food and sleeping among wet sails. On my last cruise, drops from a deck-beam fell on my face all night when it rained.

Andrew's hardier than I am, and no doubt truer to the old strain; but while the Annandale Johnstones did many reckless things, they had generally sense enough to stick to dry land."

They made the necessary arrangements, and a few days later the _Rowan_ went down the Solway with the strong ebb-tide. The shoals were beginning to show above the sand-filled water when she drifted past a point fringed by low reefs and boulders, at Criffel's southern foot.

Whitney guessed its distance as about three miles, and took a compa.s.s bearing at Andrew's order. The coast turned sharply west at the point, and the mountain, sloping to meet it, broke down into a wall of cliffs that rose, grim and forbidding, from the beach. At one place, a gap in the wall suggested a river mouth. There was not much wind, the sky was hazy, and on the port hand a stretch of gray water ran back to the horizon. It looked like open sea; but the strong rippling in the foreground indicated that the tide was running across thinly-covered banks.

"I should have liked a breeze," Andrew said. "If we bring her around, the ebb will sweep us past the mouth of the Firth. There's not much water on the sands ahead, but we ought to get a fathom, if I can find the Barnhourie gut. Keep her as she's going, d.i.c.k, with the knoll ash.o.r.e on the bowsprit-end, while I look at the chart."

Andrew went below and Whitney turned to d.i.c.k.

"Do you know this gut?" he asked.

"I remember something about it, but they keep changing. See what depth there is."

Whitney found six feet, and looked around as he heard the topsail flap. The _Rowan_ was sailing upright, but going very fast, with the current eddying about her. Wreaths of sand came up to the surface and went down again.

"Keep her full," he said. "She's luffing off her course."

"It's possible. The tide's strong and she's not steering well. I dare say there's enough water everywhere, but Andrew must find the gut: he feels he has to do the proper thing. He's made like that."

"We'll take no chances," Whitney answered; and ran to the scuttle.

"Pull up the board and come on deck!" he shouted to Andrew.

In a few moments Andrew's head appeared; and after a glance round, he swung himself up and jumping aft took the helm from d.i.c.k.

"Ready with the head-sheets!" he ordered. "We'll come round."