Estêvão's raid came to nothing, and he returned to Massawa on May 22, 1541, to rejoin the ships he had left there. While at Massawa, he attempted to salvage something from this raid by dispatching an expeditionary force under Cristóvão to assist the beleaguered Emperor of Ethiopia, Gelawdewos. Four hundred Portuguese men-at-arms were selected, seventy of whom were also skilled artisans or Engineers, and 130 slaves for this expedition, equipped with about a thousand arquebuses, an equal number of pikes and several bombards. João Bermudes, who had represented himself as the patriarch of Ethiopia to the Portuguese, accompanied this expedition. An account of this campaign in the Ethiopian highlands was later written by Miguel de Castanhoso, who accompanied Gama and was an eye-witness to almost everything he recorded. The men were landed at Massawa and Arqiqo, the next port south of Massawa, and began their trek inland to Debarwa, the capital of the Bahr negus, or Ethiopian viceroy for the northern provinces.