As eleven-year-old Milly and her family begin their second year of living in the ninety-year-old barn, Milly has never been happier. While Dad and Mum are busy building the new family home, the children are messing about on the land. Their days are full of adventures - horse riding, camping in Lantern Waste, making huts, canoeing and swimming in the river, archery... and all the while, Milly's collection of animals continues to grow. But one thing is missing. Milly dreams of milking her very own cow. However when the time finally comes, Milly discovers that training a house cow is not as easy as she thought it would be...