Their success in undoing the Queen's work of compromise was shown in a more public way by the growing withdrawal of the Catholics from attendance at the worship of the English Church. It was plain that a fierce religious struggle was at hand, and men felt that behind this lay a yet fiercer political struggle. Philip's hosts were looming over sea, and the horrors of foreign invasion seemed about to be added to the horrors of civil war. The panic of the Protestants and of the Parliament outran even the real greatness of the danger. The little group of missionaries was magnified by popular fancy into a host of disguised Jesuits; and the invasion of this imaginary host was met by the seizure and torture of as many priests as the government could lay hands on, the imprisonment of recusants, the securing of the prominent Catholics throughout the country, and by the assembling of Parliament at the opening of 1581. An Act "to retain the Queen's Majesty's subjects in due obedience" prohibited the saying of Mass even in private houses, increased the fine on recusants to twenty pounds a month, and enacted that "all persons pretending to any power of absolving subjects from their allegiance, or practising to withdraw them to the Romish religion, with all persons after the present session willingly so absolved or reconciled to the See of Rome, shall be guilty of High Treason." The way in which the vast powers conferred on the Crown by this statute were used by Elizabeth was not only characteristic in itself, but important as at once defining the policy to which, in theory at least, her successors adhered for more than a hundred years. No layman was brought to the bar or to the block under its provisions. The oppression of the Catholic gentry was limited to an exaction, more or less rigorous at different times, of the fines for recusancy or non-attendance at public worship. The work of bloodshed was reserved wholly for priests, and under Elizabeth this work was done with a ruthless energy which for the moment crushed the Catholic reaction. The Jesuits were tracked by pursuivants and spies, dragged from their hiding-places, and sent in batches to the Tower. So hot was the pursuit that Parsons was forced to fly across the Channel; while Campian was arrested in July 1581, brought a prisoner through the streets of London amidst the howling of the mob, and placed at the bar on the charge of treason. "Our religion only is our crime," was a plea which galled his judges; but the political danger of the Jesuit preaching was disclosed in his evasion of any direct reply when questioned as to his belief in the validity of the excommunication or deposition of the Queen by the Papal See, and after much hesitation he was executed as a traitor. [Sidenote: The Catholic resistance.]