On June 5, the boats were drawn up at Sungei Antu, on a little island of rubble and brushwood, upon which a stockade was erected, and where the flotilla was to be left. Forty men, well armed, were deputed to take charge of the boats and baggage in this extemporised fort, whilst the rest moved overland in the direction of the mountain. On the 7th of June, a height, the bold ridge on which the enemy had established himself, came in sight, with a succession of hills intervening like a chopping sea turned to rock. It was resolved to push on that day to Rapu, the northern termination of the mountain, and there to establish a stockade from which parties might descend and devastate the country of the hostile Saribas, on which Rentap had to depend for supplies. But it was not found possible to do in one day what was determined. The mountain was indeed reached, but ascended only by some of the advance party of Dayaks, who could not be restrained, and who scrambled up the side to the summit of the hogs-back, to be driven back with great loss, not of lives only, but of confidence and courage as well. The bulk of the force was constrained to bivouac in rain and cold on the mountain flank. The last hundred yards were almost perpendicular, and when mounting I had to pull myself up with one hand by the stunted trees; added to this, there was a declivity of thousands of feet on each side. In ascending this part not more than twenty men were with me. My best fort-man was wounded by a spear, and to assist him many of the others had left me. And now I must give credit to the Lingga people, for they were close at hand. I was within about five yards of the enemy, who were pitching spears from behind some wood on the brow of the hill, while we were underneath, and the spears went flying over my head and struck some of our party in the rear. Here I stood propped up against a tree, and poured thirty rounds from my smooth bore as fast as I could load. After this I tried to ascend, but the Linggas literally collared me. The enemy were quieted, so here we sat on the side of this hill, at an angle of 80°, the whole night. A few cross sticks were placed for me to sit on. One man held a shield at my back. When morning broke the Tuan Muda and his followers succeeded in reaching the summit of the mountain, and could look along the brow to the opposite end, where stood the stronghold of the redoubtable Rentap, to which the enemy had retired. Several of the attacking force had been killed or wounded on the previous day, and over a hundred had rolled down the steep sides, and in so doing lost arms and ammunition. The "Iron Anchor" maintained his position manfully, and well merited his name.