There, that's it: the entire chapter.
While the chapter goes on a bit of a narrative drive, the basics are pretty simple. The boys' lives go on and on, and their perspectives, for the most part, change, which is the ultimate justification for this chapter in the first place. And the changes are significant. Watch: they've nearly traded places in their maturity.
- So Charles is alone and lonely. After all these years, why would he remember the times from before the parting-of-the-ways as the "happy times?"
- Biblically speaking, what is the Mark of Cain? This, clearly, is one of the simplest extrapolations of the Cain/Abel parallel. Watch as it extends through the course of the book, and deepens as we meet the monster in Chapter 8.
- How has the time since Adam's enlistment left the brothers changed in some ways and, in others, the same? (This is a broad question in reference, but, I think, can be answered simply.)
|Cain flying before Jehovah's Curse, by Cormon|