In a cosy hay-bale house, a little brown mouse dreams of a future full of wonder and possibility. As Littlemouse’s imagination takes flight—from painting masterpieces and baking grand cakes to sailing the high seas and pondering life’s deepest thoughts—Mamamouse joins in with boundless encouragement. But when doubt creeps in and Littlemouse wonders, What if I’m just me?, Mamamouse’s love remains unwavering.