Upon the accession of Mary, a fanatic Catholic, to the throne of England, the most sanguinary laws were revived against the reformers. Knox fled to Geneva, and was soon invited to become the minister to a colony of English refugees at Frankfort. Notwithstanding the persecution by Mary, the advocates of the reformed religion, both in England and Scotland, rapidly increased, so that in 1555 Knox ventured to revisit his native land, and preached with increasing energy and boldness. His fearlessness won for him the admiration of his friends, and the execration of his foes. Knox being at one time absent on a visit to Geneva, the Papal bishops condemned him to death as a heretic, and burned him in effigy at the stake at Edinburgh. Knox drew up an energetic remonstrance against this condemnation of a man absent and unheard, and published a pamphlet, written in his most furious style of eloquence, entitled, “The First Blast of a Trumpet against the Monstrous Regimen of Women.” This violent pamphlet was aimed at Bloody Mary, Queen of England, and Mary of Lorraine, widow of James V., Queen-Regent of Scotland. But the shaft aimed at Mary the Papist pierced the bosom of Elizabeth, a Protestant queen who succeeded her. This haughty princess could not forgive a man who had written a diatribe against the “monstrous regimen of women.” But Knox, surrounded by menaces, and in constant peril of liberty and life, continued fearlessly to assail the corruptions of the Church. Though the Papal powers in Scotland were sustained by the armies of Catholic France,――for Mary of Lorraine was sister of the powerful Duke of Guise,――still, marshalled under so dauntless a leader as Knox, the reformers of Scotland advanced from victory to victory. At one time he so inflamed the populace by a vehement harangue against idolatry, that the excited multitude broke into the churches, destroyed the altars, tore the pictures to shreds, dashed the images into fragments, and levelled several monasteries with the ground. These lawless proceedings were severely censured by the prominent men of the reform party in Scotland, and by the leaders of the Reformation throughout Europe. Protestant England sent an army to aid the Protestants in Scotland. The Papal queen-regent Mary, with her army of French supporters, was driven from the kingdom; the Scottish parliament was re-established, the majority of the members having embraced Protestant opinions; the old Papal courts were abolished; the exercise of religious worship according to the rites of the Roman Church was prohibited, and the doctrine and discipline of the Presbyterian Church established as the religion of the realm.