Every morning, Ernestine shouts out her window to the Great Smoky Mountains, "I'm five years old and a big girl!" When Mama asks Ernestine--who helps with chores around the farm while Papa is away at war--to carry two mason jars filled with milk to their neighbor, Ernestine isn't sure she can do it. After all, she'd need to walk through thickets of crabapple and blackberry by the creek, not to mention past vines of climbing bittersweet. But Ernestine is five years old and a big girl, so off she sets. Along the way, one mason jar slips from her arms and rolls down the mountainside into the river, and Ernestine is sure it's lost forever until her neighbor's son shows up with a muddy jar--and there's a surprise inside! With tons of flavor and a can-do spirit, here is a celebration of American history and a plucky girl who knows that helping a family in need is worth the trouble.