Seven Trials
"Hello. You look so frustrated! So let's get started. I am going to have you edge a lot so be prepared. If you choose to, you can better your chances with the last trial by doing double the edges that I say, think you want to? Well decide now and give me 100 strokes and an edge (both must be completed to go to the next page. Only edges need to be doubled if you so wish. You would therefore do 100 strokes and 2 edges)."
If you got the special reward previously, and you decide to use it on one of these pages, it won't effect the double challenge. So if the page requests 3 edges and you use it and are trying for the double, then it will count for 6. It can only be used once though, so if you already used it, you can't do it again and you can't use it multiple times within a trial.