This of course brought upon him the wrath of Spain. He was arrested, and since he was altogether too dangerous a person to be set free in exile, he was carried a close prisoner to Spain. But he quickly made his escape and found asylum in the United States of America; and there his greatest work for Cuba was achieved. Porfirio Diaz had invited him to make his home in Mexico, where he might have risen to almost any eminence in the state, but he declined. "I must go," he said, "to the country where I can accomplish most for the freedom of Cuba from Spain. I am going to the United States." In New York City, where he made his home, he engaged in literary work, and was for some time a member of the staff of the New York _Sun_. But above all he devoted his time, thought, strength and means to organizing the Cuban revolution. He gathered together in the Cuban Revolutionary Party all the surviving veterans of the Ten Years' War, Cuban political exiles--like himself--the remnants of Merchan's old "Laborers' Associations," and welded them into a harmonious and resolute whole. He also traveled about the United States, in Mexico and Central America, and in Jamaica and Santo Domingo, wherever Cubans were to be found, rousing them to patriotic zeal and organizing them into clubs tributary to the central Junta in New York. In Cuba itself many such clubs were organized, in secret, which maintained surreptitious correspondence with the New York headquarters. We have already mentioned some of those with whom he surrounded himself: Tomas Estrada Palma, the President of the Junta; Gonzalo de Quesada, its Secretary, who lived to see the Republic established and to become its Minister to Germany, where he died; Benjamin F. Guerra, its Treasurer; and Horatio Rubens, its Counsel, who had been trained in the law office of Elihu Root. Others of that memorable and devoted company were General Emilio Nunez, afterward Vice-President of the Cuban Republic; and Dr. Joaquin Castillo Duany, formerly an eminent physician in the United States Navy, who had distinguished himself in the relief of the famous Jeannette Arctic expedition. These two had charge of the filibustering or supply expeditions which were surreptitiously dispatched from the United States to Cuba. At first General Nunez had charge of all, but when Dr. Duany came from Cuba the work was divided, and the former devoted himself to the coast from Norfolk to the Rio Grande, while the latter supervised that from Norfolk to Eastport, Maine. Dr. Duany and his brother had been prominent citizens and officials in Santiago de Cuba. As soon as the War of Independence began they joined the patriot forces, and Dr. Duany was made Assistant Secretary of War in the Provisional Government. As such, he ran the Spanish blockade of the island, in company with Mr. George Reno, another ardent patriot, and bore to New York authority from the Provisional Government for the issuing of $3,000,000 of Cuban bonds.