While abroad, his commanding intellect engaged itself in the noblest of causes--upholding the interests of civil and religious liberty, which were bound up indissolubly with the Hanoverian succession. He might have retired for ever from the world, in stern disgust at the treatment which he had experienced; but his magnanimity would not suffer him. He knew that civil despotism, and the triumph of the Romish faith, were identified with the success of the Louis of his day, as they appear to be with a Louis of our day--the Louis, at this moment, of France. The restoration of the Stuart line was the symbol of the triumph of Popery; and Marlborough continued anxiously to watch the progress of public events, with reference to that "consummation" so "devoutly" to be deprecated. The two years referred to were those of an immeasurably momentous crisis, big with the ultimate destinies of this country. Marlborough was, throughout that crisis, as clear-sighted, resolute, energetic, and skilful in securing the Protestant succession, as he had ever been in the conduct of his wars, every one of which had direct reference to that high and glorious object. He continued the very life and soul of the good cause, which he advanced by incessant watchfulness and discreet and energetic action, carrying on a constant correspondence with his friends both at home and abroad. At length Bolingbroke reached the summit of advancement, and became virtually prime minister. Bent upon the restoration of the Stuarts, in two days' time he had organised a thoroughly Jacobite cabinet, which would unquestionably have proceeded to seat the Stuarts on the throne. But the awful hand of God appeared suddenly in the ordering of events: "The angel of death," to use Mr Alison's words, "defeated the whole objects for which the ministers were labouring so anxiously, and for which they had sacrificed the security and glory of their country." Civil war was almost in the act of breaking out, when the Queen died; having at the last moment taken a step, in nominating the Duke of Shrewsbury to be Lord-Treasurer, which annihilated the guilty hopes of Bolingbroke and his party. This was the last act of her life; and on her death the Protestant party took prompt and vigorous measures. George I. was instantly proclaimed king, and in three days' time the great Marlborough reappeared on the scene, the very guardian angel of the newly-proclaimed king. His enemies were struck with consternation. "_We are all frightened out of our wits upon the Duke of Marlborough's going to England_,"[42] wrote one of them to Bolingbroke. The illustrious personage was welcomed with enthusiasm similar to that with which he had been formerly familiar; an immense concourse of citizens attended him into the city, shouting--"Long live George I.! Long live the Duke of Marlborough!" He was at once sworn in of the Privy Council, and visited by the foreign ministers and all the nobility and gentry within reach, and in the evening appeared in the House of Lords, and took the oaths of allegiance and supremacy, his old companions in arms, the Grenadier Guards, firing a _feu-de-joie_ on the auspicious occasion. "That day effaced the traces of years of injustice. The death of a single individual"--the weak, ungrateful, vacillating Anne--"had restored the patriotic hero to the position in which he stood after the battle of Blenheim!" Though he had resolved to take part no more in the conduct of affairs, he was prevailed upon to resume his post of commander-in-chief, in which great capacity his new sovereign received him with extraordinary demonstrations of satisfaction, "proud to do honour to the chief _under whom he himself had gained his first honours on the field of Oudenarde_!"[43] The discomfited Jacobites, Bolingbroke, Ormond, and Oxford, were impeached for high treason, for their conduct in seeking to overturn the Act of Settlement, and restore the Stuarts. The former two fled to France, but Oxford remained, and was prosecuted, but acquitted. Here again the character of Marlborough has been malefied, by the charge of having done all in his power to thwart the prosecution, for fear of Lord Oxford's revealing the correspondence of the Duke in early life, after the Revolution. This slander, however, is decisively refuted by two facts--that the Duke _voted in every stage of the prosecution_! and by the still more decisive fact, that he was found to have been specially exempted from the proffered amnesty published by the Pretender when he landed in Scotland.[44] This last event--the Rebellion in Scotland--must have been indeed, as Mr Alison remarks, a sore trial to Marlborough--"more severe than any he had experienced since James II.