Another difficulty arose from the state of the country north of the Zambesi, in consequence of the natives having rebelled against the Portuguese and being in a state of war. Livingstone was cautioned that he would be attacked if he ventured to penetrate into the country. He resolved to keep out of the quarrel, but to push on in spite of it. At one time his party, being mistaken for Portuguese, were on the point of being fired on, but on Livingstone shouting out that they were English the natives let them alone. On reaching Tette he found his old followers in ecstasies at seeing him; the Portuguese Government had done nothing for them, but Major Sicard, the excellent Governor of Tette, had helped them to find employment and maintain themselves. Thirty had died of small-pox; six had been killed by an unfriendly chief. When the survivors saw Dr. Livingstone, they said: "The Tette people often taunted us by saying, 'Your Englishman will never return;' but we trusted you, and now we shall sleep." It gave Livingstone a new hold on them and on the natives generally, that he had proved true to his promise, and had come back as he had said. As the men had found ways of living at Tette, Livingstone was not obliged to take them to their home immediately. One of his first endeavors after reaching Tette was to ascertain how far the navigation of the Zambesi was impeded by the rapids at Kebrabasa, between twenty and thirty miles above Tette, which he had heard of but not seen on his journey from Linyanti to Quilimane. The distance was short and the enterprise apparently easy, but in reality it presented such difficulties as only his dogged perseverance could have overcome. After he had been twice at the rapids, and when he believed he had seen the whole, he accidentally learned, after a day's march on the way home, that there was another rapid which he had not yet seen. Determined to see all, he returned, with Dr. Kirk and four Makololo, and it was on this occasion that his followers, showing the blisters on their feet burst by the hot rocks, told him, when he urged them to make another effort, that hitherto they had always believed he had a heart, but now they saw he had none, and wondered if he were mad. Leaving them, he and Dr. Kirk pushed on alone; but their boots and clothes were destroyed; in three hours they made but a mile. Next day, however, they gained their point and saw the rapid. It was plain to Dr. Livingstone that had he taken this route in 1856, instead of through the level Shidina country, he must have perished. The party were of opinion that when the river was in full flood the rapids might be navigated, and this opinion was confirmed on a subsequent visit paid by Mr. Charles Livingstone and Mr. Baines during the rainy season. But the "Ma-Robert" with its single engine had not power to make way. It was resolved to apply to Her Majesty's Government for a more suitable vessel to carry them up the country, stores and all.