The Eight Strokes of the Clock by Maurice Leblanc.  
"The Eight Strokes of the Clock" by Maurice Leblanc is a novel written during the early 20th century. This work centers around the enigmatic figure of Prince Rénine and his thrilling encounters with mystery and adventure, often involving themes of love, justice, and the intricacies of human emotion. The narrative unfolds through intriguing situations and complex characters, setting the stage for a series of thrilling escapades. The opening of the novel introduces Hortense Daniel, who contemplates eloping with a man named Rossigny, while navigating complex family dynamics and societal expectations. As she plans to escape her stifling life with Rossigny, an encounter with Prince Rénine adds layers of tension and intrigue. Following a near-assassination attempt on her, Hortense embarks on a journey with Rénine, leading to the mysterious Château de Halingre. Here, the discovery of two skeletons and a hidden telescope unfolds a storyline steeped in crime and deception. This inciting incident hints at the broader mysteries that will challenge both Rénine's skills and Hortense's heart as the plot develops.