This volume investigates the structural mechanics and evolution of Agatha Christie’s detective fiction through the lens of her private notebooks. John R. Curran, a renowned Christie scholar, utilizes previously unpublished archival material to reconstruct the author's creative process. By examining early drafts, discarded plot points, and character development notes, the book provides a systematic analysis of how Christie constructed her most iconic mysteries.

The text is regarded as a primary resource for scholars and enthusiasts seeking a rigorous, evidence-based look at the mechanics of classic detective fiction. Its reliance on primary source material from the Christie estate ensures a high level of academic credibility for those studying the history of the genre.