Mutant potato siblings Rot, Snot, and Tot 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 paper over board boxed set!

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

In The Greatest in the World!, Rot enters an epic contest with his brother, Snot, to determine the greatest in the world--as judged by their small fry little sister, Tot. From a muddy potato sack race to the sacred hot potato roll, the stakes to name the most spud-tacular sibling climb higher and higher!

In The King of the World!, Rot uncovers a shiny old crown and suddenly he feels powerful. He feels invincible. He feels like...the King of the World! And everyone has to do what the king says. But as the crown starts to go to Rot's head, he must learn that with great power comes great re-spud-sibility...

In The Sneakiest in the World!, Rot forms a Super Secret Spy Squad to get back at Snot for always sneaking up and scaring him. But when the newly minted spies prove to be not all that sneaky, can they embrace their other special skills and 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!

Binding Type: Hardcover
Publisher: Simon & Schuster Books for Young Readers
Published: 10/28/2025
ISBN: 9781665974035
Pages: 264
Size: 8.27h x 6.00w x 0.69d