Henry insisted that it should be ratified by August 24, but on August 16 he seized six Scottish merchant ships.

Though the Treaty was ratified on August 25, Arran was compelled to insist on compensation for the ships, but on August 28 he proclaimed Beaton a traitor.

In the beginning of September Arran favoured the wrecking of the Franciscan monastery in Edinburgh; and at Dundee the mob, moved by sermons from the celebrated martyr George Wishart, did sack the houses of the Franciscans and the Dominicans; Beaton's Abbey of Arbroath and the Abbey of Lindores were also plundered.

Clearly it was believed that Beaton was down, and that church-pillage was authorised by Arran.

Yet on September 3 Arran joined hands with Beaton! The Cardinal, by threatening to disprove Arran's legitimacy and ruin his hopes of the crown, or in some other way, had dominated the waverer, while Henry (August 29) was mobilising an army of 20,000 men for the invasion of Scotland.