Chapter 1: The Disappearance

It was a foggy Saturday evening when Detective Sarah Manning received the mysterious call. "Detective Manning, I need your help," a shaky voice pleaded on the other end. "My priceless heirloom, the Lourdes Emerald, has been stolen from my mansion!"

The caller was none other than Lord Winston Montague, a wealthy aristocrat known for his fine taste and extravagant lifestyle. Manning was intrigued - she had heard rumors about the emerald and its legendary beauty, rumored to possess mystical powers. Arriving at Montague Manor, the detective found a shaken Montague.

Lord Montague recounted how the emerald had been in his family for generations, always passed down to the firstborn of each generation. However, just last night, it had vanished mysteriously. The only clue was an open window on the ground floor. While Montague had called the police, he specifically requested Manning's involvement due to her reputation for solving complex cases.

Chapter 2: The Investigation Begins

Manning began her investigation by questioning the household staff. She started with Ms....