Hugo and the Impossible Thing — Renee Felice Smith

Hugo has one goal - to conquer the Impossible Thing.

At the edge of the forest stood the Impossible Thing. All the animals in the forest often wondered what was beyond the Impossible Thing, but since everyone said getting through it would be impossible, no animal ever tried.
 
Until a brave little dog named Hugo decides he just might be up to the challenge. With determination and some unexpected help from his friends, Hugo learns that what may seem impossible might just be possible after all.