How Do I Get Myself An Undead Staff?

I know I need an authorized copy of Turai's story, so I just bought the mission pack & received his book, sword & shield. I double clicked the book & have 3/6 things ticked. What does this mean?

The last 3 things say "unknown". Basically what I want to know is what do I have to do in order to get my story authorized, thanks.

you have to play through the mission by double clicking in the book to enter the bonus mission and then succeed through this mission, after that you will receive the authorization on your copy, you can repeat this as many times as you want

But it seems like there's 6 missions. Which one do I enter? Also, I read something about "discoveries". Do I need to find these in order to get an authorized copy?

There's only one mission per book. Clicking Enter on any page will send you into that stories mission. As far as the discoveries, they aren't required to get an authorized copy, but by finding them, you can earn extra cash plus free authorized books for use on other characters.

Thanks a lot