Hedgehog in the Fog by S.G. Kozlov
From Rovakada Publishing:
Hedgehog in the Fog is an international hit which has already been published in many languages (Japanese, Chinese, French and Korean, to name a few). This story is about the adventures of the philosophical little Hedgehog on his way to meet with his friend Bear. Along the way Hedgehog enters into a mysterious fog in which he encounters a horse, a dog, an owl, and a fish. The book is based on Francesca Yarbusova’s sketches to the award-winning animated film directed by Yuri Norstein. In 2003, an international film jury in Tokyo declared Hedgehog in the Fog to be the best animated film of all time.