Three mutant potato siblings embark on many spud-tacular adventures in this series of ';delightful laugh-on-every-page' (Booklist on The Greatest in the World!) graphic chapter books from the bestselling creator of the Narwhal and Jelly books. The first three books are now available together in this paperback boxed set!

There's no end to the hijinks Rot and his spuddies can get up to!

Rot enters an epic contest with his brother, Snot, to determine the greatest in the worldas judged by their small fry little sister, Tot. Then, Rot uncovers a shiny old crown and suddenly he feels likethe King of the World! But as the crown starts to go to Rot's head, he must learn that with great power comes great re-spud-sibility Finally, Rot forms a Super Secret Spy Squad to get back at Snot for always sneaking up and scaring him. But can they pull off the ultimate mission to scare the snot out of Snot?

This hilariously silly paper over board boxed set includes:
The Greatest in the World!
The King of the World!
The Sneakiest in the World!