On 6th January 1854 they left the river and rode oxen through the dense parts of the country through which they had now to pass. Through heavy rains and with very little food, they toiled on westward through miles and miles of swamp intersected by streams flowing southward to the Zambesi basin. One day Livingstone's ox, Sindbad, threw him, and he had to struggle wearily forward on foot. His strength was failing. His meagre fare varied by boiled zebra and dried elephant, frequent wettings and constant fever, were reducing him to a mere skeleton. At last on 26th March he arrived at the edge of the high land over which he had so long been travelling. "It is so steep," he tells us, "that I was obliged to dismount, and I was so weak that I had to be led by my companions to prevent my toppling over in walking down. Below us lay the valley of the Kwango in glorious sunlight." Another fortnight and they were in Portuguese territory. The sight of white men once more and a collection of traders' huts was a welcome sight to the weary traveller. The commandant at once took pity on Livingstone, but after a refreshing stay of ten days the English explorer started off westward to the coast. For another month he pursued his way. It was 31st May 1854. As the party neared the town of Loanda, the black Makololos began to grow nervous. "We have stood by each other hitherto and will do so to the last," Livingstone assured them, as they all staggered into the city by the seashore. Here they found one Englishman sent out for the suppression of the slave trade, who at once gave up his bed to the stricken and emaciated explorer. "Never shall I forget," he says, "the luxury I enjoyed in feeling myself again on a good English bed after six months' sleeping on the ground." Nor were the Makololos forgotten. They were entertained on board an English man-of-war lying off the coast. Livingstone was offered a passage home, but he tells us: "I declined the tempting offers of my friends, and resolved to take back my Makololo companions to their Chief, with a view of making a path from here to the east coast by means of the great river Zambesi."