oh turns out advent sinners breaks up it's plotline into different DLCs for every "book". This one is sort of on me, I suppose. They said directly on the store page it would be seven books and I assumed that was just a pretentious way of referring to the length of the game.

It's not really their fault when they said it directly and I just misunderstood. Still, I sort of doubt I'd get all seven books at 15 dollars each.