4 + 3 = 8?
Whoops! That's not right.
Looks like a job for the eraserheads!
The three eraserheads―an owl, a crocodile, and a pig―live atop three pencils in the land of paper, rulers, letters, and numbers. Their job is to help a little boy correct his mistakes. But one day they make a mistake of their own―and what happens next is something nobody expected.