When they had rested a while they climbed up the steep face of a pointed knoll, and then followed a long ridge to the ma.s.sive cairn on the top of the hill, where shallow pools gleamed among the green moss of a bog. Andrew sat down on a stone, but Whitney stood on the highest hillock, his eyes wandering across the wide landscape that rolled away beneath him.

To the south the sea glittered like silver, and a bright arm wound inland up a valley. To the west and north a few lemon-yellow harvest fields and strips of green pasture checkered the red heath, and the smoke of a little town hung about a hollow; but the picture's dominant tone was wild solitude. The plain rose in step-like ridges, the hillsides that bordered it were washed with shades of delicate gray, and in the distance lofty rounded summits cut against the sky.

"It looks as lonely as our Western deserts," Whitney remarked.

Andrew was busy with his chart. He had spread it on a flat stone; then, putting a compa.s.s on the middle of it, he moved a notched bra.s.s ring round the instrument. The tide was about half ebb and broad belts of sand rose among the glistering channels in the firth. Andrew took sights across them, then penciled notes on the margin of the chart, but at times he lay still for a minute or two with the marine gla.s.ses at his eyes. The others left him alone until he rolled up the chart and lighted his pipe.

"I've learned something useful," he said. "These channels change so fast that a chart's of no use unless you keep it up to date."

"What's the country to the east like?" Whitney asked. "It looks high and rough, but I seem to make out a deep valley beyond your Annandale."

"Now you have set him off!" d.i.c.k exclaimed. "Andrew's one hobby is that western road to England!"

Andrew laughed.

"The road is interesting. I will take you over it some day. For one thing, nature has provided a good route through a rugged country. For most of the way, the valleys are shut in by high moors, and that made Eskdale a natural sallyport for the old Border clans."

Elsie and d.i.c.k were walking about, picking their way among the shallow pools; but Whitney sat down beside Andrew and listened with interest to the history of the old Eskdale road.

"I shall buy a motorcycle," he declared, when Andrew had concluded; "one of those with a side-car, so that we can travel around these roads."

Elsie and d.i.c.k joined them and for a time they sat talking and looking about. There was very little wind and the murmur of the Solway tide came up to them faintly across the purple slopes where the grouse were calling.

Suddenly, as if he had sprung from the earth, a young man in khaki uniform appeared, picking his way across the bog. He was hot and breathless, and seemed surprised when he saw the party, but he came toward them with a smile.

"So you're back!" he exclaimed to Andrew. "I meant to look you up."

"We'll be glad to see you, Murray," d.i.c.k said cordially. "You haven't been round for a long time. What brings you up Criffell in full uniform? I must say it's a better fit than some they've been serving out lately."

Murray laughed.

"We are giving the Terriers a run; but business first. I suppose you haven't seen any turf that might have been dug over recently, or stones that seemed to have been pulled up?"

"No. Did you expect to find anything of the sort?"

"To tell the truth, I don't know what I did expect to find. We're ostensibly practising scouting, but there's a batch of Dumfries cyclists scouring the Galloway roads, and I imagine the authorities have some reason for sending us out."

"I suppose if you met a foreigner or anybody with an electric battery, he'd go into the bag," d.i.c.k suggested. "After reading the newspapers, one must admit that the Terriers are remarkably good shots. In fact, it's not safe to meet them in the dark."

"You imagine this turnout isn't merely part of the men's training?"

Andrew asked.

Murray looked thoughtful.

"No; I believe there is something going on round here. We've got orders to search the country as far as Screel of Bengairn--though of course that can't be done in a day. I heard they mean to organize scouting parties in the Castle Douglas neighborhood."

"Well, perhaps a wireless installation could be made small enough to carry about and hide; but a good deal of Galloway's a wilderness of granite and heath."

"That's why it might prove a suitable place."

"Yes, in a way. There are glens where a man could lurk for a long time without being seen; but they're hard to reach, and nothing that the enemy would wish to learn is likely to happen here. Then the sands protect this sh.o.r.e. The east coast's our vulnerable point: any important news could best be picked up about Rosyth. If there are wireless installations working, one would naturally look for them on the eastern slope of the Lammermuirs and along the seaboard between Berwick and the Forth."

"Of course," agreed Murray. "And no doubt they've had that district searched. But you must remember we're dealing with remarkably clever people, who wouldn't go to work in the obvious way. Now, suppose some news was gathered about Rosyth, how long would it take a powerful car to bring it here?"

"Four hours and a half, provided that none of your fellows or the police interfered."

"That's by the Eskdale road. I'd go the other way--a rough country, but there's n.o.body to bother about the speed limit."

"Well," said Andrew, thoughtfully, "I'd prefer the Eskdale. The obvious way's sometimes safest; it's the unusual thing that excites suspicion."

"There's only one road for Andrew," d.i.c.k laughed.

Murray got up.

"I must be off," he said. "My Terriers are scattered about the mosses, and khaki has its disadvantages when you're looking for your men."

He turned away and when he went, springing down the western slope of the hill, Elsie looked at the others.

"It was so serene up here," she said; "and he has broken the charm.

The war cloud looked a long way off, but it seems closer now." She glanced across the ranges of sunny hills as she added: "What a beautiful world this might be if men were sensible and just!"

"True," replied d.i.c.k; "but then we'd miss some excitement and get fat and slack. A certain amount of trouble's good for us, and that's why we make it."

"We didn't make this horrible war."

"No; I suppose we didn't. As a future landowner, I've naturally no admiration for the Lloyd George gang, but one must admit that they were forced into the fray. To do them justice, they're not the lot to fight when they can help it, and they're certainly getting on better than I expected."

"You were bound by the 'Sc.r.a.p of paper,'" Whitney remarked.

d.i.c.k chuckled.

"Our politicians have left us nothing to say about that; but I'll admit there's something convenient in the other fellows' theory. I happen to know a little about sc.r.a.ps of paper and there are one or two I'd be glad to disown."

"So I thought!" Andrew interposed dryly.

"Oh," d.i.c.k laughed; "my frankness is always getting me into trouble."

Soon afterward they went down the hill, talking carelessly, but Elsie's eyes were grave when she saw in the distance small scattered figures moving across the heath. There was something ominous about the soldiers' presence on the quiet moors where the black-faced sheep had long fed undisturbed.

CHAPTER VII

THE GRAY CAR

It was one o'clock in the morning, but Andrew could not sleep. He sat by an open window, looking at the tops of the firs, which stood out in black silhouette. It annoyed him to be so wakeful, as he and Whitney were to make an early start for Edinburgh; but Andrew had something to think about, for he realized that his friendship with Elsie could not be resumed where it had broken off. She had grown up while he was away, and his feeling toward her had changed. To be regarded as an elder brother no longer satisfied him, and if he were not very careful, he would find himself in love with her. This was unthinkable: first of all, because he was lame and poor, and then because it was obvious that Elsie ought to marry d.i.c.k. She had no money; d.i.c.k had plenty and, besides, d.i.c.k needed her. Elsie would keep him straight, and his weak heart would cease to trouble him when he steadied down.