If lost or destroyed, a new copy can be obtained by locating the chest again or from the bookcase in your Player-Owned House made through Construction.
When in your bookcase, this text is called Drozal's Journal.
Below is the text you can read from within the book.
My life is full of changes at the moment. I've met a great and powerful follower of Zamorak, whom has offered me the chance to join him and others in the quest for ultimate power and desolation of others. This is just the opportunity I've been looking for! I move into the old outpost north of Ardougne at the end of the week.
I can hardly wait!
Been here a few days now. I'm overwhelmed on just how evil the other 8 are. I suppose this is amplified by living in such a small building.
Started causing havoc to the people of Ardougne today. We poisoned the water supply with a strange concoction which caused everyone to break out in boils! Very funny. The others have been stealthily setting fire to some people and laughing at their conclusion of spontaneous combustion.
I think I shall have to come up with something more evil for tomorrow.
Following my genius plan to make all the children invisible, the city is now in total chaos as the kids test their freedom into a panic.
Honestly, some of the tricks the kids play are better than anything I could invent.
Sadly things have calmed down in the city, and they've started to realise that we're the cause of all the tragedy. Luckily, the people don't have enough power to get past our defences, and even if they did, they would wish they hadn't thought of such an attack.
We have been told to 'beware for your days are numbered' by the people of Ardougne. It seems the city has asked for some external help, which will be upon us some time soon. I'm sure we will eliminate such a threat though.