I remember we had a book in my elementary school called that, it was some drawn out, trying to hard, fantasy story that didn't actually teach you jack shit.
EDIT: found it. Lady Di of Ameter? give me a fucking break could they no try any harder than that?
All my hipsters out there know that the book was better than the ~~movie~~ meme.
https://www.amazon.com/Cumference-First-Round-Table-Adventure/dp/1570911525
There's actually a series of books about Sir Cumference http://www.amazon.com/Cumference-First-Round-Table-Adventure/dp/1570911525/ref=sr_1_1?ie=UTF8&qid=1420960594&sr=8-1&keywords=sir+cumference+series
I object. This meme is stealing good dad jokes from king author.
http://www.amazon.com/Cumference-First-Round-Table-Adventure/dp/1570911525