David Moir was a true descendant of the old Westland Whigs; sternly just and ready to suffer for his principles, he could make no allowance for a different point of view, and was subject to fits of cold anger which, while generally righteous, was tinged with fanaticism. His son’s treachery filled him with horror, but he was calm enough to see that the weak lad had been the victim of the men who used him. Well, he meant to settle the black account with them!

It was bitterly cold and he was getting wet, but his watchfulness did not relax. The growl of Ewan Water, brawling among the stones, rose from the valley and the wind whistled eeriely through the chinks in the dyke. For a time he heard nothing else, and then a faint throbbing began and grew louder. A big car, without lights, was travelling dangerously fast along the fellside, and as it came near Moir stood in the gateway holding up his lantern. He heard a warning shout and a rattle of stones as the locked wheels skidded, and the half-seen car stopped a few yards off. Moir turned the light upon the two men in it.

‘Which o’ ye is Fritz?’ he asked.

They looked surprised, but one said ‘You want to know too much. Why have you stopped us?’

‘My name is Moir. I want a word with ye.’

He put the lantern on the dyke and the light glimmered on the barrel of his gun. It was his duty to hand the men to the patrol, but if this was impossible, so much the worse for them. They had made his son a traitor to his country by taking advantage of his need, and Moir suspected that Fritz had first made him a thief.

‘You’re the young fool’s father, but we can’t waste time on you,’ said one. ‘Drop that gun and let us pass!’

‘Get doon!’ said Moir, who did not move.

‘Out of the way, or we’ll drive over you!’ the other cried.

The car rolled forward and Moir sprang back, hesitated as it ran past, and lowered his gun.