Having left his retreat, he determined to travel to Rome, to exhort his Holiness to establish in Europe several monasteries, where monks should be occupied in acquiring and teaching languages, in order to spread everywhere the Gospel of Jesus Christ, and to labour for the conversion of the infidels. But Honorius IV., from whose piety he had everything to hope, died as soon as Lully reached Rome, and he therefore returned to Paris, where he explained publicly his General or Universal Art for the acquisition of all sciences. From Paris he went to Mont Pelin, where he also taught and wrote; thence to Genoa, where he translated his _Art Inventif_ into Arabic. From Genoa he again proceeded to Rome, but seeing that it was impossible to attain his ends on account of the obstacles which presented themselves in the Sacred Court, he returned to Genoa, intending to start for Africa, and personally labour in the conversion of the infidels. He made terms with the owner of a vessel, shipped his books on board, with the other necessities of his journey, but, when he was himself on the point of embarking, a vision of all the dangers he was about to encounter so worked upon his mind, that he was deprived even of the power of walking, and was obliged to renounce his intention. His effects were consequently returned to him, and with these he re-entered Genoa in the midst of a crowd of vagabonds, who derided his weakness. Whether consequent on this raillery, or through shame at his cowardice, he became dangerously ill.[K] On the Vigil of Pentecost, 1291, he was carried to the Convent of Friars Preachers, and received the care which his condition required. He received the last sacraments, and dictated his last will and testament; nevertheless, he was destined to recover, and had scarcely regained his strength when, to repair his previous fault, he embarked upon the first vessel bound for Tunis. During the voyage he composed his “General Tabulation of the Sciences.” Immediately on his arrival at Tunis, he held conferences with those who were most erudite in the law of Mahomet. He proved, at least to his own satisfaction, that they were in error and darkness, and that truth was on the side of Jesus Christ. He was accused before the King of Tunis of seducing the people, was arrested, cast into prison, and ultimately condemned to death. But a learned Arabian priest, overcome by his arguments, obtained his pardon on condition of his instant departure. He left the town amidst the insults and opprobrium of the populace, prohibited to return, on pain of certain death.