It was a stormy evening at 221B Baker Street. The rain lashed against the windows, and the streets outside were nearly deserted. Inside, Holmes was absorbed in an experiment involving chemicals, while I was reading by the fire, occasionally glancing at the thunderous weather outside. I mused aloud about how such dreadful weather would keep all but the most desperate souls indoors. Holmes, without looking up, said, "Desperation often brings out the truth in people, my dear Watson."

Suddenly, I heard a frantic knock at the door, and Mrs. Hudson opened it. A moment later, an elderly man, drenched from head to toe, stumbled into our sitting room. The figure spoke out in a low and hoarse voice: "You must forgive me, Mr. Holmes, for visiting in such an unusual condition…" He removed his hat, revealing a young and tired woman's face! She fiddled with the messy, short white hair with her fingers: "And please excuse this; it's a necessary precaution for me at the moment." She seemed very distracted, yet anxiously looked around.

Holmes led her to the seat before the fireplace, took a step back, and glanced at her swiftly.

"You are not here by chance," Holmes began, his voice calm but penetrating. "Despite your convincing disguise, the ink stains on your fingers and the slight wear on your shoes suggest a profession that requires frequent writing and walking—likely a journalist, and not a mere columnist, but one who pursues stories with fervor. The fact that you have come here, in such dreadful weather and under a false identity, indicates that you are in considerable danger. It is not just your own safety that concerns you, but that of others as well."

The client looked up at him in surprise; a sense of admiration and delight ran through her emerald green eyes. "I've heard a lot about your skills, Mr. Holmes. To be honest, it is such a relief to me now that you really live up to your name." She took out a letter and a small piece of paper from her coat and handed them to Holmes. Holmes sat back, holding them up to the light. I stood close to him and observed: the letter was made of clipped words, saying, "Come and play," while the small paper looked like a weird hand-painted map.

"They are clipped from the same newspaper, and a specific column," Holmes murmured, instantly going up to search through our pile of newspapers. "Ah," he picked it out, "The Daily Observer." He spread the newspaper on the table, pointing to an area. "The Unseen World, by L. Hunter."

"That's me," our client claimed, "Lily Hunter."

"So, a mysterious fan reader of yours sent you such a bizarre message at a strange hour?"

"I'm afraid it's not that simple, Mr. Holmes," Miss Hunter smiled bitterly.

"How so?" Holmes asked in a mild tone.

She rubbed her knees with her palms and said, "Something happened two weeks ago. My friend, Grace Dawson, who worked as a waitress in Seville Café, went missing after work. The police investigated for a long time, but they didn't find her alive or her dead body. You see, Mr. Holmes, it's a very abrupt incident for everyone. Grace is a decent and friendly girl. She has a big and poor family; she works day and night to support her siblings. She would never just vanish like that."

"Did the family receive any demands for ransom?"

"No, nothing."

"Any possibility she got involved in any romantic affairs?"

"No, never," Miss Hunter said in a determined tone. "Grace is not the type of person; she is very dedicated to her family. Her social circle is very small, as far as I know."

Holmes lit up his pipe, frowning. "Did the police look for any underground whorehouses? Any pimps?"

"Yes, Mr. Holmes," Miss Hunter's face twisted in pain, "even that, but her trail is nowhere to be found."

An ominous premonition came to my mind, knowing that Miss Grace Dawson could have been murdered already.

Holmes's face hardened. He smoked the pipe and picked up the small map to observe it closely.

It was a worn, yellowed piece of parchment, clearly aged and handled many times before. Its edges were frayed and slightly torn, adding to its ominous appearance. The map itself was hand-drawn, with ink that had faded in some areas, giving the impression of something old yet intentionally preserved.

It showed a small section of the countryside, with a few notable landmarks sketched in. A thick, twisting line represented a winding road, which led to a small, isolated structure labeled as a "Ranch" in spidery, uneven handwriting. Surrounding the ranch were sparse trees, depicted with simple, jagged lines, suggesting a desolate area rather than a lush forest.

The map also featured a small, almost insignificant 'X' marked in a patch of grass near the ranch. The 'X' was drawn with a darker, fresher ink, making it stand out from the rest of the faded details. There was something unsettling about its precision, as if it was placed there with cold, calculated intent.

In the margins of the map, there were cryptic symbols or numbers that seemed random at first glance but might hold hidden meaning. These were faint and almost smudged, adding to the mystery. The map had no compass, which gave it an unnervingly directionless feel, as if the user was meant to rely on instinct—or fall into a trap.

Holmes talked to himself in a low voice: "It feels rough to the touch, with slight water stains that suggest it might have been exposed to the elements or even intentionally aged. There's a faint, musty smell, like old books or a forgotten drawer."

Holmes spread the map out on the table under the lamp, his keen eyes scanning every detail.

"This map depicts a location in the outskirts of London—likely near Surrey, where such isolated ranches are common. These symbols suggest measurements or directions. They might correspond to specific points on the ranch itself—perhaps the distance from the main building or the orientation relative to other landmarks. Given the layout, this spot isn't just randomly marked. The placement suggests something buried—likely hidden underground or among dense vegetation. This map implies that the object in question is deliberately hidden."

He looked up from the map and turned to me. "Watson, would you please check the train timetable for me? When's the earliest train to Harrowgate Station?"

"Six o'clock," I checked.

"Very well, then," Holmes took a look at his watch and walked to the client. "Miss Hunter, if you are willing, you can rest on our sofa for several hours. Mrs. Hudson will fetch you some blankets. We'll take the early train tomorrow morning to the indicated spot."

Miss Hunter was stunned for a while, but a spark of hope lit her haggard face. "Of course, Mr. Holmes," she nodded firmly. "Anything you say."

The next morning, in the cold pale mist of London, we set off in a hurry. While the train was moving, I noticed that despite the exhaustion and anxiety that had washed the color from Miss Hunter's face, deep in her eyes was a kind of strong perseverance, like reefs washed by waves. Holmes just looked out the window, immersed in his own thoughts. An invisible giant stone now pressed on everyone's heart, accompanied by the unknown prospect.

We got off the train and walked for a few minutes to "Briar Hollow Ranch." The weather was gloomy; the dark green grass was covered with foggy dew. Holmes carefully compared the map to the real landscape. He walked around, measuring out steps based on the symbols and the 'X' mark's placement. His precise calculations led him to a patch of grass near a weathered tree.

Holmes knelt down, pushed aside the grass, and there, just as he suspected, lay a buried object. He pulled it free, revealing a tarnished key. "This key is not for any ordinary door," he mused. "It's old, likely a duplicate made for something less obvious than a hotel room. Its true purpose will lead us deeper into the suspect's game."

Holmes scrutinized the key in the dim light, turning it over in his hands. "This is no ordinary key," he remarked. "Notice the unusual shape and the intricate engraving along the shaft. This key is designed for a specific, older type of lock—likely one found in a historic or significant structure."

Holmes then considered the local landmarks, particularly those that could house such an old lock. He recalled the map and the surrounding area. "This key likely belongs to a place of prominence in the vicinity, something ancient."

I opened up the atlas I carried, searching for a spot matching the description. "Here," I pointed out to Holmes, "the Grimshaw Clock Tower! Could it be?"

Holmes leaned towards me to see it. "Excellent, Watson!" His eyes showed praise. He pointed to the engraving on the key. "These markings resemble the motifs used in the old clock tower nearby, a place of both historical significance and seclusion. It's not commonly visited, which makes it an ideal location for a murderer's next step."

The Grimshaw Clock Tower cast long shadows across the overgrown path leading up to the ancient structure. The tower loomed above us, its dark stone walls weathered by time and the elements, with ivy crawling up its sides, giving it an eerie, almost haunted appearance. The clock face, high above, was cracked and missing several of its hands, frozen in time.

Holmes paused at the entrance, his keen eyes scanning the exterior. The iron door at the base was rusted, with intricate, almost

Gothic carvings etched into it. The air was heavy with a sense of abandonment, the only sound being the faint creaking of the old structure in the wind.

The interior of the tower was cold and damp, the air thick with the smell of mildew and age. Dust motes danced in the weak light that filtered through narrow, dirty windows. The floor was made of worn stone, uneven in places, and littered with debris from the decaying structure. A spiral staircase, narrow and rickety, wound up along the tower's inner wall, disappearing into darkness above.

Holmes led the way, his steps cautious but deliberate. The wooden handrail of the staircase was splintered, and the stairs creaked with every step, threatening to give way under the weight.

Suddenly, Holmes paused midway, crouching down to examine something on the stairs. "A recent footprint," he muttered, "someone else has been here, not long ago."

"Step back," he waved to us, and we backed off to give him more space. He took out the magnifying glass and almost lay prone on the ground to observe. After a while, he rose and continued, his eyes sharper, more alert. Miss Hunter and I followed closely, trying to ignore the unease that tightened in our chests.

At last, we reached the top of the stairs, where a heavy wooden door barred our way into the clock chamber. Holmes examined the lock—an old, complex mechanism that matched the key we found at the ranch. With a deliberate motion, he inserted the key and turned it. The lock clicked open with an unsettling finality.

He pushed the door open, and we stepped into the clock chamber.

In the center of the room, however, something immediately grabbed our attention—a small, disturbing tableau arranged by the murderer.

A lifeless female body leaned against the wall facing us, a toy bear pinned to the wall with a knife, and lying on the floor was a letter with clipped words: "You think you can protect them?"

For a moment, we were just stunned in silence by the horror. I could literally hear Miss Hunter's teeth clenching together, a mixture of rage and sorrow expressed on her face.

"Them?" Holmes scanned the room. "Why them?" He picked up the letter from the floor, looking straight into Miss Hunter's eyes. "What's the third person's story here in this room? Aside from Grace Dawson and you, Miss Hunter."

She wiped away the tears and slowly dragged herself out of the room. As I intended to follow her out of concern, Holmes stopped me: "Give her some time," he said, turning back to examine the body. "She's much stronger than the murderer imagined."

Poor Miss Grace Dawson died from a blow to the back of the head by a heavy object. Her nails were clean, with no signs of struggle. The back of her clothes and socks were dirty and worn, indicating she had been moved a long way to this location. The murderer clearly did not kill for money or sexual purposes. So, why?

"The motivation for this murder is very personal," Holmes remarked, taking down the toy bear. "The letter, the map, the brand-new but deliberately damaged toy bear…" He carefully checked the knife. "The killer is constructing a scene, using specific objects to relive a moment. And with this provocative sentence, I would say, Watson, he feels an urgent need to regain his power. He will not stop here, no," Holmes's grey eyes shone with a cold light. "He will kill again."

After Holmes went to inform the local police, I found Miss Hunter under the clocktower, sitting on the ground with her head between her knees. I sat down near her, trying to find some comforting words. It was such a shocking and horrible thing she was facing now. I felt deeply sorry for her.

"He's taunting me," she spoke in a bitter tone, lifting her head. "How dare he… kill my friend and then mock me with her death! It's unforgivable!" Her red and swollen eyes were immersed in tears and hatred.

"The killer—could he be your enemy? Have you ever had any vendettas with anyone?" I asked cautiously.

"Nothing that I can recall," she answered. "If that bastard has a problem with me, he could take up his revolver and come straight to me. This coward! Hiding behind these little games, thinking I would collapse!" She stood up quickly. "Let's go, Doctor, we can't let this monster get what he wants."

I was surprised by her quick recovery, but what was most important now was to catch the murderer before he killed again.

In the local police station, Holmes placed all the evidence found on the table and began his deduction. "The murderer has a personal grudge against Miss Hunter. He has held it inside for many years. He's arrogant, petty, emotional, and has no intention of hiding his identity. His final target is to take your life, Miss Hunter."

"This is a lot, Holmes," I said, taking down notes.

Holmes nodded. "This case is not at all clueless. In fact, the clues are overflowing. The letter is made from a column Miss Hunter wrote, indicating the murderer paid attention to Miss Hunter's regular life, studied her. But he chose not to directly confront Miss Hunter. He chose to start with her intimate friend, aiming to create fear and emotional damage. This is very personal. He invested a lot of effort and strong personal affection. The toy bear and the knife are brand new; the killer bought them specifically for this crime. Why? He couldn't get the original items; it's been too many years. But he still vividly remembers their details. And this whole journey, making us run around, why doesn't he just put the dead body on your doorstep to terrorize you, Miss Hunter? Because he wants to take the lead."

"But could there be any other reasons?" I said. "Journalists always have angry readers. What if a reader did all this and introduced all these irrelevant objects to mislead the investigation?"

Holmes smoked his pipe. "Reasonable doubt, Watson. Miss Hunter," he said, leading the client to the evidence, "I want you to take a closer look at them, see if they remind you of something, anything."

Miss Hunter took the knife in her hand. "This knife is pretty handy," she said, doing a skillful throw and catch with it before holding it up to the light. "The pattern on the knife handle… it's been ground down artificially…" Suddenly, she was struck by a realization. "I've got something!" she quickly turned to Holmes. "My father used to do this! When I was a child, he sent me a knife like this, but I complained the pattern on the handle hurt my skin when I used it for a long time, so he ground it down for me! I always brought that knife with me when I was a kid." She covered her forehead as the memory came rushing back, then stormed out of the police station. "Quickly, Mr. Holmes!" she shouted. "There is a place you need to be!"

Many hours later, Miss Hunter took us to a manor named "Greyfell." "This is where I grew up," she added. "The owner is the boss of the *Daily Observer.* We are childhood friends."

The manor owner, Mr. Alfred Greyfell, came out to greet us. He was a pale, skinny young man with a soft voice. He led us to his study and offered us refreshments. As we were chatting and explaining Miss Hunter's situation, Holmes was exploring the study, looking absent-minded.

"Here," Mr. Greyfell took down an old photo from the wall. There were three kids in the photo—two boys and two girls. "Me and my sister Alice," he said, pointing to Miss Alice Greyfell, who had long curly hair and a sweet-looking face, "and you, Lily." He shook his head with lament. "You haven't changed at all these years, Lily."

At this moment, I keenly observed that beside Miss Alice Greyfell, a toy bear was leaning on her thighs! "Holmes," I said, excited by this new clue, "you have to see this!"

"This is what I wanted to tell you, Mr. Holmes," Lily said, sitting down with the photo. "It's something that happened a long time ago."

"When I was a child, my father worked in the manor for Alfred's father. The three of us were the same age, inseparable all day. Alice was younger than me; I saw her as my little sister. One day, her father was holding a dinner party at the manor, and I came to help in the kitchen that evening. After the dinner, the dishes were returned to the kitchen, and I noticed Alice hadn't finished her dessert. It was unusual for her—Alice was such a sweet tooth back then, and I always added extra frosting to her dessert. So I took a bite of her leftover, wondering if I'd made a culinary mistake, but something was really off with that dessert. I tasted a heavy flavor of alcohol in my mouth! I made this dessert personally, step by step, and delivered it to the servant with my own hands! Somebody added alcohol to Alice's dessert! I remember running up the stairs to find Alice. Many guests were gathering in the hall. I was drowned in the crowd, and suddenly Alfred pulled my arm from behind. I asked him where Alice went, and he said Alice left the party and went to bed early. So I ran to her chamber quickly."

She paused a little and swallowed nervously. "I don't know how to explain this, Mr. Holmes. I was a pretty daring kid back then—nothing in this world could frighten me. But standing in that dark corridor that night, I felt the cold shiver of fear running through my spine. I... I grabbed the knife my father had sent me when I saw it on my way. The bedroom door was half open. I pushed the door open; it was dark, with only moonlight from the window. Alice was lying on her bed, sleeping, and there was another man in the room. I couldn't see his face; he was on the bed, like a giant bat, covering her…"

"Oh my God! Lily!" Alfred Greyfell was completely stunned. But Miss Hunter took a deep breath and continued, "I was terrified, like my veins were burning. I pulled out that knife and pointed it at him like crazy. I screamed! I threatened to kill him over and over again, and I threw that knife at him. I hit him."

Mr. Greyfell was already slumped in his chair. "He ran off, and I hurried to check on Alice. Thank God, she was fine. Not even awake, holding her toy bear, curled up in her quilt." Miss Hunter let out a sigh. "I was so scared, I didn't know what to do, so I kept this thing to myself all these years. I never thought…" she started to sob, "I never thought he would come back…"

Holmes sat silently, with his fingers pressed together. "Miss Hunter, please excuse me for saying this, but I need you to try to remember more details about that intruder." He leaned closer to her, his voice velvet-smooth, his eyes sharp like an eagle's. "What do you remember?"