Diary of a Wimpy Kid Wiki



Diary of a Wimpy Kid Wiki

Your first mistake, Mr. Beasley, was when you forgot to convert Celsius to Fahrenheit!
Sherlock Sammy

Sherlock Sammy (known as Encyclopedia Brown in the online book) is the young and nerdy protagonist of the fictional book called Sherlock Sammy Does It Again, which includes twenty short stories. He appears in the online book, Rodrick Rules, and was mentioned in The Last Straw.


Rodrick Rules[]

Greg Heffley states that he has been using the book Sammy stars in as book report material for the past five years, due to how easy they are to process. He claims that the plot of all of the stories is the same: an adult commits a crime, then Sherlock Sammy figures it out, and makes the person look stupid.

The Last Straw[]

Mrs. Craig keeps everyone in class until the person who stole her dictionary returns it and after three days a couple of guys were sick of being stuck inside for recess and decided to interrogate people to find out who took her dictionary. Greg figured there was only a matter of before those guys cornered him and since he has read a lot of Sherlock Sammy books, he knew it takes a nerd to get you out of a pinch so him and a couple of other guys went to Alex Aruda to see if he could help. Alex has read a lot of Sherlock Sammy books too as he said he'd help them if they paid him five bucks which Greg complains is totally unfair as Sherlock Sammy only charges a nickel.


Sammy is known as Encyclopedia and plays the same role in the online book with an extra line of writing by Greg stating that he can never figure out how Encyclopedia figures out all these crimes guessed that he's not as smart as him. [1]


  • In Rodrick Rules, Sherlock Sammy has a striped shirt, but online version of him has a black shirt.
  • Sherlock Sammy's name is likely a reference to Sherlock Holmes, another fictional detective.
  • In the online book, Sherlock Sammy is replaced by Encyclopedia Brown, the protagonist of another book series written by Donald Sobol.
    • The change from Brown to Sammy was likely made to prevent copyright infringement issues.
  • While he is a Sherlock Holmes parody, Sherlock Holmes still exists within the series and was added into Rowley Jefferson's Awesome Friendly Adventure.




Rodrick Rules[]