Below is the text you can read from within the book.
Rintra 12th: What a joy it is to write in a journal because I want to, not because I have been commanded to. Exciting news: the golem-like TzHaar speak of an ancient kiln that heats their city. Assuming this isn't just folklore, this could be the forgotten Elder Kiln. I have not been as excited about a discovery in a very long time; while this interest is largely academic, this potential power excites me. Zamorak could forge an army out of bare rock if this is truly the Elder Kiln.
Moevyng 8th: It's unfortunate that I must get blood on my hands again, although 'shards of rock' might be more appropriate. On principle I am a scholar and not a violent man, but if a fool stands in my way, I will cut that fool down. I am long past the point where I feel remorse for what I've done.
Moevyng 9th: The caves are death traps, littered with ferocious creatures composed of fire and rock. It's little wonder the TzHaar avoid this place.
Moevyng 10th: My progress is blocked by a large ornate gate. There are primitive coded symbols engraved onto large scales either side of it. If this is all the TzHaar can do to hinder my progress, Zamorak shall have his army by dawn.
Moevyng 11th: No joy. The code is a little more complicated than I first anticipated. However, it shall not be long until I've cracked it.
Moevyng 14th: No matter what I do the door won't budge. I'm sure the TzHaar numbers answer is in these symbols, but for the life of me I can't work it out, I shall make a tracing and decipher it on the surface. This is inconvenient...
Raktuber 31st: Well, I'll be damned! The symbols are simply numbers. What a fool I've been! Who would have thought that the TzHaar had their own counting system?
Fentuary 3rd: The brute guarding the entrance attacked with surprising speed. My legs are broken in several places and I fear that my body is ruined. Somehow, I have managed to drag myself back across chasms to relative safety; relative, as long as these rock creatures cannot smell my blood.
Fentuary 4th: I regret few things, but our betrayal is one of them. It was unnecessary and she was kind to me.
Fentuary 5th: I grow weak and am now unable to move. I shall die here in these caves alone, much like Char. The irony has not been lost on me.