Nine-year-old Anna was a baby when Mellwyn found her in the roots of a willow tree. Now the High Willow calls to her, but Mellwyn forbids her to go there. Anna is a child of nature, at home with birds and trees, and that nature calls her, until she cannot deny her inner yearning. Who is Anna? Where has she come from and what is her journey? Are there dangerous ghouls waiting for her there?