Dead of Winter
Winter had come as it did every year; draping the woods in a beautiful carpet of snow that induced a quiet, content slumber among the woodland animals. After the appointment of the Marten only some had left to seek the warmth of the South for good. The rest were no longer afraid. The Marten would surely be successful and save them all. He was a brave animal, a real hero, so they slept; snug and warm in their dens.
Only one tiny, little mouse was not asleep. He so enjoyed the snow, it made the Moorwood look like a different world, like it was made of soft white clouds, and so he spent the frosty winter days building himself a friend out of snow, so when the solstice rolled around he would have someone to celebrate with.
I really felt like I am in that world
He is one smart little chap, looking that far ahead and make preparations for it.
What is the title of the book, and is it a children fantasy book?
All the best to you in making that book!