User blog comment:HighSchoolStoryLover!/Number of diamonds needed to be able to select all diamond choices in all books./@comment-32214412-20180908100200

I legit had this plan on saving all the diamonds I get for all the books I've completed until I get to buy all clues from Endless Summer. So I won't get to the next chapter of ES until I get to buy every clue from every chapter. Even if the last book ended and all the most recent books pop up, I still won't move forward. I was in Chapter 6 and I said, oh my I can't do it anymore. I'm glad I discontinued my plan!