It was a powerful appeal from a monarch to a subject, especially under the peculiar circumstances of the moment. Riding alone over the breezy upland with that beautiful woman, under the exciting influence of wild scenery and an inspiriting gallop, the heart softened by the smile of nature, and the blood tingling with exercise, few men but would have found it impossible to resist a suppliant, who was at the same time a Queen, and such a Queen. Loyalty demanded obedience, self-interest whispered the advantages of royal favour, and the impolicy of refusing a sovereign, ambition drew a dazzling picture of the eventual triumph of the cause wrought out by the judicious concessions of one man alone, and that man venerated as the great pillar of Protestantism in Europe; but conscience thundered ‘No;’ and to do Knox justice, he never wavered nor hesitated for an instant. His lineaments looked more rugged, his brow more uncompromising than usual, when he rejoined—

‘Your Grace has addressed me frankly, and as frankly I reply to you. If by holding up my finger I could retain for the Church of Rome any one of the privileges that are daily and hourly slipping from her grasp, if by so doing I could relieve her from one of the least of the indignities or calamities which are surely gathering round her head from the four quarters of heaven, see, madam, as I ride here a living man before you, I would keep it clenched down by force till the nail grew through the palm of my hand! I am a soldier, I will not desert my banner; I am an heir, I will not alienate my birthright; I am an honest man, I will do my duty at all hazards, in the face of every prince in Europe.’

He looked sublime while he spoke; the weak, ungainly figure reared itself in the saddle with all the pride of a Colossus, and never a belted earl could have borne a nobler front in coronet and ermine than did that minister of the Church in the fearless integrity of his purpose. Mary grew pale with anger and disappointment; nevertheless she had long since learned the painful lesson of self-control, and she forced herself to speak calmly, while her very blood was boiling within.

‘Would ye refuse to others the liberty of worship ye exact for yourselves? Would ye persecute men who differ from you only in their mode of worship, more ruthlessly than the pagan emperors persecuted those early Christians who were our teachers as well as yours? Bethink ye, Master Knox, this is a world of change. The old faith hath many staunch supporters still. Men’s minds may alter as they have altered ere now, and those who are all-powerful to-day may find themselves petitioners for mercy to-morrow. Is it well to exasperate beyond endurance those who may in their turn come to have the upper hand?’

The implied threat was injudicious and ill-timed; she would have done better, knowing with whom she had to deal, either to have given vent to her indignation and defied him outright, or to have repressed it altogether; but she was only a woman after all, and womanlike, could not entirely separate the two sensations of anger and fear, so she adopted those half-measures to which her sex is fain to have recourse in a difficulty, and roused his spirit while she tried to work upon his apprehensions.

‘I defy the Romish Antichrist as I defy the principle of evil itself,’ replied Knox, with kindling eyes and excited gestures. ‘Am I watchman set upon a hill, and shall I leave my post because the enemy is at hand? Am I a shepherd in the wilderness, and shall I abandon my flock because the storm is gathering on the horizon? No, madam, once again I tell you that if you count on my allegiance in this matter, I renounce it; if you depend on my loyalty, I am a rebel!’

‘It seems so,’ she replied very coldly, and yet there was a tone of utter sadness and desolation in her voice that smote on the Churchman’s heart. With looks of tender pity and concern, such as a father bends upon a favourite child, he would have argued with her once more, would fain have expounded to her the fallacies of her doctrines, and recalled her from the way which he conscientiously believed to be the very high road to destruction; but as is often the case in such disputes, the more one yielded the more the other encroached, and she cut him short with haughty impatience, reining in her horse, and pointing with outstretched arm towards the south.

‘Yonder lies your homeward way, Master Knox,’ said the Queen, ‘and here is mine; I sent for you to listen to my proposals, not to hear your pulpit declamations at secondhand. When next we meet, others may have found means to tame that haughty spirit, and the avowed rebel may be glad to solicit pardon from his sovereign. I have no further need of you; you may depart!’

The dismissal was as peremptory as it was unceremonious; though burning to reply and charged with argument, he could not pretend to misunderstand it, and unwillingly withdrew. Ere the tramp of his horse had died out on the heathery sward, Mary burst into a passion of tears which she could no longer control; then bending her head low to her horse’s neck, put ‘Black Agnes’ once more to her speed, and followed by her attendants, galloped off in the direction of St Andrews.