"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 shore. 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 nobody 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," Dick 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.