The sound of voices roused her from her abstraction, first to a sudden flush of annoyance, and then, as she perceived the two figures before her, to a warm thrill of zeal for their conversion. ‘The Lord has delivered them into my hand,’ the enthusiast said to herself. Their backs were turned to her, and their minds so much occupied that even the crackle of the heather under her foot did not betray her approach. She was close by their side, laying a sudden hand upon the shoulder of each before they were even aware of her presence. ‘What do ye here?’ said Ailie, rising as it seemed to them like a ghost out of the darkness. The two sprang apart and gazed at the intruder, but Ailie was too much absorbed by her office to heed their looks. ‘Isabel Diarmid,’ she repeated with solemnity, ‘what do you here?’ ‘I was doing nothing,’ said Isabel, startled back into self-possession: ‘I might say what were you doing coming upon folk like a ghost?’ ‘If ye mean a spirit,’ said Ailie, ‘it’s like that I wish to come. What is this poor body that we should let it thrall us? If I had faith I might fly upon angel’s wings: but oh! I’m feared it was not to serve the Lord that you two came here. Na, stand apart, and let me speak. Can ye see a’ this world round about ye, and no feel that you’re immortal? Isabel, the Lord would fain have ye to be His servant--and you too, young man.’ ‘Oh, Ailie, I’m no like you,’ murmured Isabel, awed out of her first self-assertion. As for Stapylton, he turned away with contemptuous impatience. ‘What does she know about it?’ he said. ‘Isabel, don’t you give in to this rubbish. Nobody has any right to intrude upon another. Tell her to mind her own business.’ This was said in a low tone. ‘Come, I’ll see you home. It is getting late,’ he said, aloud. ‘Ah!’ said Ailie, ‘it’s getting late, awfu’ late. The blackness of the night is coming on afore the awfu’ dawn. Think what it will be when you canna go home, nor find a place to hide yourself in from the brightness of His coming. Worldly wisdom would bid you join yourselves to Him now. But I’m no thinking of worldly wisdom. To stand up for Him in a dark world; to go forth like the angels, and make the way clear; to love and to bless, and to give life for death. O Isabel! O young man! I would rather that than Heaven.’