Status Updates From A Most Puzzling Murder

After solving two puzzles, now it's getting difficult to read the story, but only search for the puzzles. They are very satisfying.

I did the first puzzle here. I had to email the clue but it was really satisfying to do the puzzle

"If the thought of writing in these pages fills you with horror, let me assure you that this book is 1 different from other more prim and proper tomes. This particular book positively demands that you engage with it."