There's something I need help with, and it's kinda hard to explain but I hope you understand.

Let's say I made two books, book 1 and book 2. Both books give a quest, but I don't want to get the quest from book 2 before I got the quest from book 1. I can't get this working. I have been messing with conditions a bit, but either I can get the quest from book 2 before I got the quest from book 1, or I can't get the quest from book 2 at all, even if I have the quest from book 1.

I't kind of confusing, I know, but I hope someone understands and knows how to do this.