Leo Lionni Caldecott Honorinning story is now available as a Step 3 Step into Reading bookerfect for children who are ready to read on their own. Winter is coming, and all the mice are gathering food . . . except for Frederick. But when the days grow short and the snow begins to fall, it Frederick stories that warm the hearts and spirits of his fellow field mice. Lionni enduringly popular tale makes a winning addition to the Step into Reading line, letting young children enjoy this classic all by themselves.