Bowser's Diary

Bowser's Diary, also known as Bowser's Secret Diary, is an item in Paper Mario. Found in Princess Peach's Castle after Bowser's Castle uprooted it from the ground, Princess Peach must go through the secret path and board the turning platform in order to read it.

This diary contains information about one of Mario's next destinations, Dry Dry Ruins in Dry Dry Desert.

The diary can only be read during the intermission between Chapter 1 and Chapter 2 as after Bowser catches Peach reading it, he sends his Koopatrol to take her back to her room.