The book follows the journey of a brilliant yet socially awkward Cambridge professor who specializes in the study of faeries. As she embarks on a research expedition to a remote Scandinavian village to complete her comprehensive encyclopedia on the subject, she encounters a world where the boundary between human and faerie is intriguingly blurred. Alongside her charismatic and mysterious colleague, she navigates local folklore, uncovers hidden truths, and confronts her own personal challenges, ultimately leading to profound discoveries about both the faerie realm and herself.