Las Casas was not wearied with his undertaking, or disheartened with his disappointment; he obtained an interview with the regent, and argued his cause with so much feeling and eloquence, that Ximenes appointed a commission of monks from St. Jerome to go to the West Indies and make every inquiry into the situation of the wretched inhabitants, directing Las Casas to accompany them, with the title of “Protector of the Indians.” Upon their arrival, the monks proceeded with caution to investigate the matter; and after some time spent in this way, gave it as their opinion, that the Spaniards must either give up their American conquests, or be satisfied with very little gain, unless the system of slavery was tolerated; at the same time, expressing their determination to try all endeavours in their power to secure to the Indians a milder and a better treatment. All but Las Casas were satisfied with these proceedings, but he argued for total exemption; and so strenuously did he urge his plea, that the planters’ anger was aroused, and he was obliged to retire into a convent to preserve his life. But Las Casas was not the man to give up a favourite project for a trifle. Finding how ill he succeeded in the New World, he determined once more to sail for Spain, and employ every means and exert every energy to accomplish his plans, and never to give up his labours until death or the accomplishment of his wishes ended them. By the time he arrived at home, the Cardinal Ximenes had resigned the regency, and Charles had assumed the reins of government, and to this monarch Las Casas carried his complaints. The emperor listened to him, and appointed another commission of monks to inquire into the business; but Las Casas knew the opposition this measure would meet with, and the little good it would effect; he therefore set his wits to work to find out some other expedient, and at last thought of introducing other labourers into the West Indies in lieu of the Indians. The use the Portuguese made of their African discoveries was to ensnare the inhabitants and sell them as slaves; and Las Casas thought that if these wretched people could be transported in numbers to America, they would, from their stronger constitutions and hardy frames, answer better than the natives themselves. This plan was laid before the council in Spain, and although strongly resisted by Cardinal Ximenes, who saw the impropriety of condemning an innocent nation to perpetual slavery to save another, the measure was carried by a majority of voices, and Charles granted to a favourite courtier a patent, empowering him to purchase slaves in Africa, and ship them to the West Indies.