Which passage from "Blowup: What Went Wrong at Storm King Mountain" states a key idea of the article?

The following passage states a key idea from the article:

In his book Young Men and Fire, Norman Maclean writes that dying in a forest fire is actually like experiencing three deaths: first the failure of your legs as you run, then the scorching of your lungs, finally the burning of your body. That, roughly, is what happens to wood when it burns. Water is driven out by the heat; then gases are superheated inside the wood and ignited; finally, the cellulose is consumed. In the end, nothing is left but carbon.

The article "Blowup: What Went Wrong at Storm King Mountain" is a detailed description of forests fires, how they begin and spread up to huge lands.

You can make a timeline by reading the article which is about the fire in a forest in Colorado and the experience of the survivor Brad Haugh.