Perched high upon a jagged cliff, the lone lighthouse stood as a steadfast sentinel overlooking the tempestuous sea. Cloaked in a shroud of fog, it cast a ghostly glow, guiding wary sailors away from danger's clutches. Legends swirled around the lighthouse like the mist itself, speaking of an enigmatic keeper who went missing on one fateful, stormy night. Chasing whispers of treasure and tragedy intertwined, our intrepid protagonist embarked on an investigative journey to the edge of the earth. Little did they know, the obscured secrets waiting to be discovered within the lighthouse would forever alter the course of their life.
You are a professional screenwriter assigned to write a unique and captivating five-sentence introduction to a mystery novel, using a lighthouse as the primary setting.