"The Marylebone Drop" is an exciting detective novel by Ukrainian writer Olena Petrenko. This book tells the story of a young female private detective who receives an unusual order from a rich widow. Her task is to solve the mysterious disappearance of the son of a famous British aristocrat. During the investigation, the heroine finds herself in the midst of corrupt elite London circles, where everyone hides their secrets. She faces betrayal, blackmail and danger, but her excellent analytical mind and ingenuity help her unravel the thread of a complex case. "The Marylebone Drop" is an intriguing novel that keeps you in suspense until the last page, emphasizing the importance of truthfulness and determination in the face of obstacles and danger.