Comment by gfaster

I also wrote an alternative solution (not a public repo), but I found that relying on site maps and other link lists generally gave unsatisfactory results. Instead, my solution navigated as a user and actually used next chapter links. While that slowed it down (+ 10 seconds between requests to be polite), it could handle very large books, with the largest I used being 700+ chapters at the time (5000 pages).