Ragged Diary
The Ragged Diary is the diary that belongs to Ghost T. in Paper Mario: The Thousand-Year Door. Ghost T. lost it on the Excess Express and never found it. Ghost T. later died and still didn't find it; he was scared that someone might read his diary.
When Mario and his Partners came to his room (Cabin 4) he was hidden. Mario had to hide with Vivian for a couple of seconds to make him appear. When he did, he asked Mario to find his diary. Ghost T. warned Mario not to read it.
When Mario finds the diary, he has an option to read it - if he reads it he will get a Game Over and if he doesn't, he won't.(He will have the option to save and read it before returning it)
If Mario agrees to read the Ragged Dairy, he will read the following:
Month X Day X Cloudy
I got on a train today,
And on that train...
After Mario read this, Ghost T. appears, as does the Game Over screen.