The accession of a sovereign attached to the Roman Church had been the signal for many who had hitherto concealed their opinions to avow their devotion to that communion. The Master of University College was one of those who had conformed to the rites of the Anglican Church whilst supporting so far as he dared, in the pulpit and the press, the doctrines of Rome. He now openly avowed his conversion and did his utmost to promote the Roman Catholic cause. Ave Maria Obadiah, as he was nicknamed from an academic catch of the time, was authorised by the King to appropriate some college rooms for a chapel under the Roman ritual. He had already been absolved by a royal dispensation from the duty of attending the services of the Church of England, and from taking the Oaths of Allegiance and Supremacy. Walker's doings were at first received with ridicule and then with indignation. But secure of the King's favour, he continued on his Romanising way. He erected a press at the back of the college, and published, under royal licence, a series of controversial books maintaining Romish doctrines. The University was disgusted and alarmed at this deliberate attempt to undermine the National Church in the very centre of its chief stronghold. A pamphlet war ensued, but it was a war in which the King made it evident on the occasion of a visit to Oxford in 1687 that he was on the side of Obadiah. A statue of the monarch was set up over the gateway of the large quadrangle of University College to commemorate the visit of the royal "reformer of heresy." At Christ Church, meanwhile, Massey, a convert and creature of Walker, had been appointed dean by the Crown and installed without protest by the Chapter. The old refectory of Canterbury College was fitted up as a private chapel for the dean's use, and James attended mass there. At All Souls', too, the fellows had admitted as warden the nominee planted on them by the royal prerogative. But James was not to have it all his own way with the colleges. Men had stiffer backs at Magdalen.