It grew very hot, and the screes above the thicket were blistering to the touch.

My tongue, too, stuck to the roof of my mouth with thirst.
The first chimney I tried ran out on the face into nothingness, and I had to make a dangerous descent.

The second was a deep gully, but so choked with rubble that after nearly braining myself I desisted.

Still going eastwards, I found a sloping ledge which took me to a platform from which ran a crack with a little tree growing in it.

My glass showed me that beyond this tree the crack broadened into a clearly defined chimney which led to the top.