Lord Ogilvy appealed to the privy council and the council ordered Argyll to stop these onslaughts, which he did until a month later another force of catarans, whether ordered to do so or not but definitely Campbell men, attacked from over the hills and more vengeance was wreaked, this time in Glenisla and Glen Cova where the old castle was destroyed. The death toll was smaller with only three or four killed, but the marauders made away with all the sheep and horses, and anything they could not carry, they burnt and destroyed. The Ogilvys at this time were finding themselves more and more isolated, surrounded on all sides by Protestants.
In 1639, the 7th Lord Ogilvy, grandson of the James Ogilvy who had built Forter, rode out in support of King Charles I. He joined the royalist army at York on the 1st of April and it was there on the following day that the grateful king created him the first Earl of Airlie. On hearing this news in Scotland, the committee challenged the new Lord Ogilvy to sign the National Covenant, which naturally he refused to do. As punishment, the Committee of Estates sent the Earls of Montrose and Kinghorn, "to the place of Airlee and to take in the same, and for that effect to carry cartows (cannons) with them". With the Earl still in England with the King, the young Lord Ogilvy found himself in sole charge of Airlee Castle when they arrived. On being confronted to surrender, he defiantly replied that his father was absent and had not given him the authority to do so and so would defend the castle to the utmost of his power. In fact, the Earl of Airlee was a near kinsman to Montrose and so Montrose launched an attack with no great enthusiasm, leaving without a single casualty on either side.
This incensed Argyll so much that he would not rest until the Ogilvys had been brought down. On the 12th of June he obtained authority from the Committee to suppress the ‘malignants’ of Badendoch, Atholl and the Braes of Angus. This time his target was all three castles of Airlie, Forter and Craig.
Leaving nothing to chance, he raised a formidable force of five thousand men, armed with heavy artillery against whom there could be no real resistance. They approached Airlee Castle, first from the south, and near reached its walls before their presence was known. The Earl still away in England, the duty of defense remained with his son yet again, the 8th Lord Ogilvy, who had bravely withstood the assaults of Montrose and Kinghorn earlier that year. Realizing the futility of resistance against such a force, Ogilvy withdrew his men, hoping the worst excesses of Argyll's retribution would be stayed. This was in vain as Archibald the Grim, bent on nothing short of total destruction, took a personal hand in demolishing Airlie. Indeed it is said he took a hammer to the doors and windows, "till he did sweate for heate at his work." Whilst Argyll busied himself with Airlee, he sent his most trusted lieutenant to raid the rich pickings of Glenisla and to make sure that Forter Castle was razed to the ground.
The Great Earl took pained step to note to his lieutenant how the demolition of Forter was to be carried out. He itemized each step, how the windows and roof should be destroyed and "make the work short, ye will fyir it." Exacting that the last thing he should do was burn it to the ground.
The most vivid scenes recalled by the balladeer are those by the Countess Ogilvy, who is said to have been in residence at Forter during the sacking; it deemed the safest house. The countess was said to have witnessed the burning of Forter from high up on the hill; we can only imagine what she thought as she witnessed the wealth of her family go up in flames and the spoils of war be marched from under her nose. Even though it was only Lord Ogilvy and his father the Earl who had countered the wrath or Argyll, many glenfolks in the lands of Airlee were seen to suffer; it was said that in all the lands of Airlee there was not left "a cock to crow day."
Craig Castle was never re-built and Airlie Castle, which was the principal residence of the Ogilvy family for a matter of seventeen years, had to wait a further 150 years before being habitable again. Forter Castle had to wait a full 350 years until its restoration.