I have been tasked with reading The Campaings of Alexander the Great and to answer the prompt: What ways does the text relate the deterioration of character through excess of power?

Let me start this by saying I don't want the answer, I'd rather find it on my own. What I do need is a little insight.

I'm little over one hundred pages in, so 1/4 through not counting the extras, and I have yet to come across and instance where Alexander made some egregious power crazed decision. I have found several instances of him, by Arrians account, being a pretty decent King and General.

I guess what I'm asking is do I need to read deeper into the material I have already covered, or is does this 'deterioration' of Alexander happen later on in the text? I know the question can be answered, otherwise it wouldn't have been asked. I'm just worried I am missing some greater meaning in events that I have already covered.

Thanks in advance for any insight provided!