Second & Third code finished! B5

This update ties together all the updates that have been done in the past month.

You can now read the book, which will give you what you need to get the second code, which'll then lead to you getting the third code.

Not sure why I didn't add this sooner as most of the other updates were unusable due to this lack of feature, but it's added now!

Game:

Github: https://github.com/ImNotJahan/mystery-game