Auzou Book for the wolf who believed in his dreams

Loup has thousands of dreams! To fly like a bird, to meet Father Christmas, to become a magician... So when the Little Mouse puts a potato under his pillow, he quickly rushes to plant it, despite his friends' teasing. What if it were magical? One morning, the potato turns into a huge stalk that grows and grows, straight up towards the clouds... and the land of dreams?