Claverhouse was of another breed from Grimond, and had the chivalrous instincts of his house, but as the time wore on and Graham went with the Prince's guards after the surrender of Grave to The Hague, where Colonel MacKay and the Scots Brigade were also stationed, the constant spray of insinuations of MacKay's cunning and the Prince's prejudice began to tell upon his mind. He was conscious of a growing dislike towards MacKay, beyond that coolness which must always exist between men of such different religious and political creeds. It was a tradition among the Scots Royalists from the days of Montrose that the Whig Highlanders, such as the Campbells, were cunning and treacherous, and then it was right to admit that MacKay might think himself justified in warning the Prince of Orange, who was surrounded by Presbyterians, and already coming under the masterful influence of Carstairs, the minister of the Presbyterian Church, and afterwards William's most trusted councillor, that Graham belonged to a thoroughgoing and dangerous Cavalier house, and that it would not be wise to show him too much favor. Although they were fellow-soldiers, and had met in camp life from time to time, they had never been anything more than distant acquaintances. Now it seemed to Claverhouse that MacKay looked at him more coldly than ever, and that he had caught a triumphant expression in his eye. MacKay was getting upon his nerves, and he had come to hate the sight of him. As a matter of fact, and as Claverhouse granted to himself afterwards, while MacKay was not his friend and could not be, he had never said a word against him to the Prince, and if he had used no influence for him, had never tried to hinder his promotion. The day was coming when Claverhouse would acknowledge that though MacKay was on the wrong side, he had conducted himself as became a man of blood and a brave soldier. In those days at The Hague, disappointed about promotion, and with evil news from Scotland, to say nothing of Grimond ever at his elbow goading and inflaming him through his very loyalty, Claverhouse allowed himself to fall into an unworthy and inflammatory temper. When one is in this morbid state of mind, he may at any moment lose self-control, and it was unfortunate that, after a long tirade one morning from Grimond, who professed to have new evidence of MacKay's underhand dealing, Claverhouse should have met his supposed enemy in the precincts of the Prince's house. MacKay was going to wait upon the Prince, and was passing hurriedly with a formal salutation, when Claverhouse, who in this very haste found ground of offence, stood in the way.