In the novel Someone Knocking, a girl named Dolma is haunted by a mysterious knocking sound that her grandfather, Ngawang, attributes to the spirits of those who died during their family's escape from Tibet. As the knocking intensifies, Dolma begins to unravel a dark family secret tied to a past betrayal. The knocking is not just a ghost; it is a "wound in time" from a young woman who was betrayed and cast out by those she trusted. As Dolma's connection to the spirit deepens, she must confront the unsettling truth of her family's past to bring peace to the vengeful spirit. The book ends with her preparing to face the spirit and the buried history that connects them both.