There are three bonus Chaos Walking stories, and The New World
is the only one that's available on Amazon. It's also the first, chronologically, so I figured I would go for it.
Yes, I'm pacing myself. I have two more to go and I'm reluctant to read them, because that's The End.
Anyway, The New World
is just a little bit of Viola's journey, her parents, her friends. I wish I had read it earlier so I could have recognized some of the other characters when I was going through the books proper, but the introduction was just as enjoyable retroactively.