Tower of Druids
It only appears in Cabin Fever, when Greg says it's worth 40 dollars since he got the first edition signed by Kenny Centazzo. However, he finds out it's worthless when he realizes Susan forged the signature due to her low tolerance of waiting in line. It does get signed at the end of the book, but Kenny writes the name as "Craig," so Greg says hopefully he can find a rich guy with that name who's really into graphic novels and sell it to him for a pile of cash.
- Diary of a Wimpy Kid: Cabin Fever (First and only appearance)
- It does not have a lot of words.