During the appeal process, a prison had been built at Lokitaung, where Kenyatta and the four others were then interned. The others were made to break rocks in the hot sun but Kenyatta, because of his age, was instead appointed their cook, preparing a daily diet of beans and posho. In 1955, P. de Robeck became the District Officer, after which Kenyatta and the other inmates were treated more leniently. In April 1954, they had been joined by a captured Mau Mau commander, Waruhiu Itote; Kenyatta befriended him, and gave him English lessons. By 1957, the inmates had formed into two rival cliques, with Kenyatta and Itote on one side and the other KAU members—now calling themselves the "National Democratic Party"—on the other. In one incident, one of his rivals made an unsuccessful attempt to stab Kenyatta at breakfast. Kenyatta's health had deteriorated in prison; manacles had caused problems for his feet and he had eczema across his body.