When a mysterious woman washes ashore on a remote island, Hetty finds her solitary existence shattered by local suspicion and the onset of a deadly storm. Hetty, a girl who prefers the isolation of the island's fringes, becomes the focal point of community hostility after the stranger's arrival. As the islanders turn against her, Hetty must navigate both the physical dangers of a brewing tempest and the psychological weight of the voices she hears from the sea. The narrative follows her attempt to uncover the truth behind the woman's identity and the connection that seems to bind them together. The story unfolds with a focus on Hetty's internal experience as she faces external pressures from a community that views her as an outsider.

Readers frequently highlight the eerie, atmospheric quality of the writing, which effectively mirrors the protagonist's internal isolation. Discussion often centers on the ambiguity of the supernatural elements and whether they represent genuine external forces or psychological manifestations. Critics note the pacing is deliberate, allowing the tension within the island community to build alongside the physical storm. Many readers appreciate the focus on character development over traditional action sequences, finding the mystery of the stranger's origin compelling. The book is often cited for its ability to maintain a sense of unease throughout the narrative.