Book 9 Chapter 1

Dec 15, 2012
I am on the quest where I need mandrake root to cure the Free Ranger. I am buying the story by chapter and need to get to the Tumblslide. I go there and it says I need to pay for Book 9 Chapter 1: The Seven Assemble. I am not at that part of the story yet so why should I pay for it now? Is there any way to get defeat the Black Storm raiders without going there?
Witty Gavin Bristol level 22