"Stolen Souls" by William Le Queux is a novel written in the late 19th century. The story unfolds against the backdrop of St. Petersburg, Russia, and introduces characters steeped in mystery and political intrigue, including the hauntingly beautiful Princess Agafia Ivanovna and the enigmatic revolutionary conspirators she aligns with. The narrative hints at themes of obsession, crime, and the occult, as it navigates the turbulent political landscape of the era. At the start of the narrative, the protagonist, a journalist, experiences a series of strange encounters that culminate in a mysterious meeting with Princess Agafia. Observing her in a restaurant, the protagonist notes her spiritless demeanor, which suggests a deeper turmoil. Soon, he discovers her connection to radical Nihilist groups and is drawn into a web of political conspiracies, including an oath she takes to commit murder for the revolution. The opening unfolds with a sense of foreboding, as the protagonist grapples with inexplicable sensations, marked by encounters that leave him feeling increasingly entangled with Agafia and the dangerous world she inhabits. (This is an automatically generated summary.)