<p>In 'The Summit House Mystery; Or, The Earthly Purgatory', L. Dougall crafts an intricate narrative that melds elements of mystery, psychological intrigue, and social commentary, set against the backdrop of a secluded mountain lodge. The novel unfolds through a series of enigmatic events and character interactions that explore themes of morality, the nature of evil, and the human condition. Dougall employs a richly descriptive literary style, d...