The Princess Mouse: A Tale of Finland by Aaron Shepard, illustrated by Leonid Gore

From chapters.ca:
In Mikko's family, when a son is ready to marry, he must chop down a tree and then search for his bride by following the direction in which the tree points. When Mikko's brother chops down his tree, it points right to where his sweetheart lives. But when it's Mikko's turn, the tree points toward the deep, dark woods. What type of sweetheart can Mikko expect to find there? Though his brother taunts that the only wife Mikko will find in the forest will be a wolf or a fox, Mikko sets off optimistically. There he meets the most unusual of sweethearts, but one who proves that with an open heart and mind, love can be rewarded in the most surprising and unexpected ways. With luminous illustrations by Leonid Gore, Aaron Shepard retells a classic Finnish folktale that will delight young readers time and time again.