Genesis 4 - Some of his crops

Cain causes quite a few interesting things go wrong with the story.

There are many ways to read the story of Cain and Abel: a test of true worship, an allegory of agricultural society displacing nomadic herdsmen, the progression of sin, or an example of family disfunction. Its inescapably a "dead end" story no matter how you read it, and there are many useful challenges to ponder.