Allen was then once more in Rome, having been summoned by the pope after a dangerous illness two years before. He never left the city of Rome again, but he kept in constant correspondence and communication with his countrymen back in England. It had been due to his influence that the Society of Jesus, to which he was greatly attached, undertook to join in the work of the English mission; and now Allen and Father Parsons became joint leaders of the "Spanish Party" amongst the Roman Catholics in England and in Ireland.