When Vanbrugh at length produced the warrant of Lord Godolphin, empowering him to contract for the duke, this instrument was utterly disclaimed by Marlborough; the duke declares it existed without his knowledge; and that if such an instrument for a moment was to be held valid, no man would be safe, but might be ruined by the act of another! Vanbrugh seems to have involved the intricacy of his plot, till it fell into some contradictions. The queen he had not found difficult to manage; but after her death, when the Treasury failed in its golden source, he seems to have sat down to contrive how to make the duke the great debtor. Vanbrugh swears that "He himself looked upon the crown, as engaged to the Duke of Marlborough for the expense; but that he believes the workmen always looked upon the duke as their paymaster." He advances so far, as to swear that he made a contract with particular workmen, which contract was not unknown to the duke. This was not denied; but the duke in his reply observes, that "he knew not that the workmen were employed for _his_ account, or by _his_ own agent:"--never having heard till Sir John produced the warrant from Lord Godolphin, that Sir John was "his surveyor!" which he disclaims. Our architect, however opposite his depositions appear, contrived to become a witness to such facts as tended to conclude the duke to be the debtor for the building; and "in his depositions has taken as much care to have the guilt of perjury without the punishment of it, as any man could do." He so managed, though he has not sworn to contradictions, that the natural tendency of one part of his evidence presses one way, and the natural tendency of another part presses the direct contrary way. In his former memorial, the main design was to disengage the duke from the debt; in his depositions, the main design was to charge the duke with the debt. Vanbrugh, it must be confessed, exerted not less of his dramatic than his architectural genius in the building of Blenheim! "The Case" concludes with an eloquent reflection, where Vanbrugh is distinguished as the man of genius, though not, in this predicament, the man of honour. "If at last the charge run into by order of the crown must be upon the duke, yet the infamy of it must go upon another, who was perhaps the only architect in the world capable of building such a house; and the only friend in the world capable of contriving to lay the debt upon one to whom he was so highly obliged." There is a curious fact in the depositions of Vanbrugh, by which we might infer that the idea of Blenheim House might have originated with the duke himself; he swears that "in 1704, the duke met him, and told him _he_ designed to build a house, and must consult him about a model, &c.; but it was the queen who ordered the present house to be built with all expedition."