Hii!
So this is going to be the book with the letters to Louis that Tess will write.
Before you read this book, you'll need to read the main fanfic: The Letters. It's on my profile.
I'll put at the beginning of the letter after what chapter you have to read that letter. Eg: Chapter 2. Then you first have to read the main fanfic until chapter 2. So also chapter 2.
Got it? Otherwise just comment and I'll try to explain it different.