This game is run on maptools and you can get the current version here at Rptools
I have many books in Pdf format and I am willing to share, but should you want one of these files you might need this
Ascendant campaigns can view previous versions of their pages, see what has changed (and who did it), and even restore old versions. It's like having a rewind button for your campaign.
We've already been saving your edits, so if you
you will have instant access to your previous versions. Plus, you get a 15-day free trial, so there's nothing to lose.