We went only ten kilometres on September 12th. We crossed two small rivers and one large, flowing west and south, evidently into the Secundury.

On September 13th we had another painful march, my men struggling along, stumbling and falling every little while. They were dreadfully depressed. Towards the evening we came to a big tree, at the foot of which we found some discarded shells, such as we had once seen before, of fruit eaten by monkeys. My men and I tried to scrape with our teeth some of the sweet substance which still adhered to the shells. We saw some of the fruit, which was fit to eat, at a great height upon the tree, but we had not the strength to climb up or cut down that enormous tree.

All the visions of good meals which I had had until then had now vanished altogether on that tenth day of fasting, and I experienced a sickly feeling in my inside which gave me an absolute dislike for food of any kind. My head was beginning to sway, and I had difficulty in collecting my ideas. My memory seemed to be gone all of a sudden. I could no longer remember in what country I was travelling, nor could I remember anything distinctly. Only some lucid intervals came every now and then, in which I realised our tragic position; but those did not last long, all I could remember being that I must go to the west. I could not remember why nor where I intended to come out.

Everything seemed to be against us. We were there during the height of the rainy season. Towards sunset rain came down once more in bucketfuls and lasted the entire night, the water dripping from our hammocks as it would from a small cascade. We were soaked, and shivering, although the temperature was not low. I had my maximum and minimum thermometers with me, but my exhaustion was such that I had not the strength to unpack them every night and morning and set them.

We crossed two streamlets flowing west. Benedicto and Filippe were in such a bad way that it was breaking my heart to look at them. Every time they fell down in a faint I never knew whether it was for the last time that they had closed their eyes. When I felt their hearts with my hand they beat so faintly that once or twice I really thought they were dead. That day I myself fainted, and fell with the left side of my face resting on the ground. When I recovered consciousness some time later, I touched my face, which was hurting me, and found that nearly the whole skin of my cheek had been eaten up by small ants, the lower lid of the eye having suffered particularly. A nasty sore remained on my face for some two months after that experience, the bites of those ants being very poisonous.

Bad as they were, there is no doubt that to a great extent we owed our salvation to those terrible ants. Had it not been for them and the incessant torture they inflicted on us when we fell down upon the ground, we should have perhaps lain there and never got up again.

I offered Benedicto and Filippe a large reward if they continued marching without abandoning the precious loads. Brazilians have a great greed for money, and for it they will do many things which they would not do otherwise.

On September 14th we made another most painful march of 20 kil., again up and down high hills, some as much as 300 ft. above the level land of that country, and all with steep, indeed, almost vertical, sides, extremely difficult for us to climb in our exhausted condition. We saw several streamlets flowing west. When evening came we had before us a high hill, which we ascended. When we reached the top we just lay upon the ground like so many corpses, and, ants, or no ants biting us, we had not the energy to get up again. Once more did the rain come down in torrents that night, and to a certain extent washed the ants from our bodies.

My surprise was really great the next morning when I woke up. I felt myself fading away fast. Every time I closed my eyes I expected never to open them again.

On September 15th we made another trying march, collapsing under our loads every few hundred metres. My men were constantly looking for something to eat in all directions, but could find nothing. Benedicto and Filippe were now all the time contemplating suicide. The mental strain of perpetually keeping an eye on them was great.