Stopping to care for an injured crow on the way to their family cabin takes an unexpected turn for sisters Kat and Allie. They find themselves alone in the Virginia woods, their parents an ocean away.

Just figuring out food and shelter while staying hidden from strangers is hard enough, but as the days go by, there's more to question: Why is someone lurking around the old spring house? What is the haunting lullaby they hear in the night? And why is Allie's name on an ancient gravestone?