Unlike the other mice, who are incurious about the wall that has always been part of their world, Tillie is determined to find out what lies on the other side of the wall.

The first new original Leo Lionni picture book in nearly 30 years, featuring the beloved mouse Frederick as he guides his fellow mice--and young listeners--through a joyous celebration of the seasons. There is more than one way to prepare for a long winter, as Frederick tells his friends in the classic story. Gathering food and other supplies is important, but gathering the smells, sounds, and sights of a beautiful day to recall later are just as...