The male protagonist of the book is poisonous

As soon as we stepped through the castle's ancient, mysterious gates, an air of decay and decay surged toward us like a surging tide, overwhelming us with unstoppable force. The air was so thick it felt like a materialized, dark fog, instantly enveloping us tightly, as if dragging us into an endless abyss of darkness. Dim light struggled to filter in through the dust-covered windows, and the dust particles danced joyfully and recklessly in the light, like countless tiny spirits. Each speck seemed to tell a story of the castle's past, shimmering in the dim light, further obscuring it. The light was so weak, barely illuminating a small area around us, it seemed to cast a thick veil of mystery and gloom over the castle's interior, a veil that concealed countless unknown dangers and secrets.

The castle's interior was vast beyond imagination, its towering dome looming like a dark, boundless sky, seemingly harbouring an invisible yet immense power. This power, like a sleeping beast, exudes an oppressive aura, ready to devour us, the insignificant trespassers. The dome's height inspires awe as we gaze upward. The patterns upon it, like ancient runes, like the marks of time, loom in the dim light, as if warning us not to venture forth lightly.

"Everyone, be careful. There are all sorts of dangers lurking here," I said, my voice deliberately lowered. It slowly echoed through the deathly silence of the castle. A subtle hint of tension laced my words, like tiny ripples on a calm lake. Though my voice was low, it was remarkably clear in the silence, as if every word was absorbed by the castle walls, then slowly released, resonating with an inexplicable sense of dread in the air.

Luo Chen nodded solemnly, gripping his wand tightly. It was as vital to him as the pillar of his life. He gripped it so tightly that his knuckles began to turn slightly white, like frost-bitten branches on a winter's day. His eyes were filled with vigilance, like a cheetah poised to pounce on its prey, always prepared for any unexpected situation. His gaze was fixed on the darkness ahead, as if he could see through the danger lurking there, every subtle movement a concern. The little boy, like a frightened animal, clung to the edge of my clothes, his tiny hands clenched tightly, his body trembling slightly. Although his eyes gleamed with curiosity, they were filled with a deep fear of the unknown danger. His gaze darted around anxiously, like a frightened deer. His face was pale with nervousness, and his lips trembled slightly, as if he wanted to say something but was afraid to speak.

We advanced cautiously along the long corridor, a dark, endless tunnel. Every step forward felt like stepping into an endless, unknown abyss. The tattered portraits hanging on the walls seemed like ancient witnesses, ruthlessly forgotten by time. The figures in the portraits held solemn expressions, their eyes imbued with a mysterious magic, as if they were watching our every move closely, making us feel uneasy and uneasy. The paint on the paintings had begun to peel, revealing the mottled canvas beneath, like the scars of time. The stone slabs on the floor were loose, and with every step they took, a subtle creaking sound was amplified in the silence, like an ominous omen, echoing in our ears and sending a chill down our spines. Each creaking sound was like the sigh of the ancient castle, as if telling of the vicissitudes of its past.

Suddenly, from a nearby room, a sinister, eerie laugh erupted. Like a demonic call from the depths of hell, its chilling sound reverberated through the castle, instantly shattering the oppressive silence. The laughter was like countless sharp claws, piercing our eardrums and causing our hearts to tighten. Like a bowstring being pulled taut, our muscles tensed, our entire bodies on high alert. Luo Chen reacted quickly, stalking the room where the laughter originated. His steps were light and cautious, like a nimble cheetah stalking its prey. His footsteps were so light, almost silent, like a ghost moving through the darkness. The little boy and I followed closely behind him. I held the little boy tightly behind me, my eyes like a vigilant hawk, constantly scanning the surroundings. My hand unconsciously tightened around the hilt of my sword, ready to draw it at any moment to respond to any danger.

Upon entering the room, we found it completely empty and silent, devoid of any other objects. Only a massive stone platform sat in the center, like an ancient, enormous beast, silently crouching there, exuding an ancient and mysterious aura. The platform was engraved with strange patterns, resembling mysterious runes, emitting a faint glow that resembled the flickering stars in the night sky, adding a touch of mystery and eeriness to this already eerie room. The surface of the platform was somewhat rough, as if eroded by countless years, while the areas engraved with the patterns were remarkably smooth, as if meticulously polished by some mysterious force.

"These patterns look like some kind of magic circle," Luo Chen said, his eyes fixed on the patterns on the stone platform, a look filled with deep thought. His brow furrowed slightly, his eyes gleaming with wisdom, as if he were trying to decipher the secrets hidden behind these patterns. His gaze slowly moved across the patterns, taking in every detail, like a scholar studying a precious ancient book.

As we concentrated intently on studying the patterns on the stone platform, the temperature suddenly and without warning plummeted. The chill felt like countless icy needles, piercing our very bones and leaving us shivering. Our breath instantly transformed into a white mist that rapidly spread before us, blurring our vision and obscuring everything around us. The mist seemed alive, swirling around us, leaving us feeling as if we were in a chilling dream. Then, a group of ghostly creatures slowly emerged from the wall. Their bodies were translucent, as if formed from condensed smoke. Their eyes shone with a faint blue light, like will-o'-the-wisp fire, emitting a chilling chill. Just one glance sent a chill surging from the soles of our feet to the very top of our heads. Their forms were vague, as if they would vanish into thin air at any moment, yet their eerie presence was too real to ignore.

"It's the ghost guards, everyone be careful," Luo Chen shouted at the top of his lungs, his voice trembling slightly in the biting cold air, a mixture of tension and seriousness. His voice echoed in the room, but it did not dispel the cold and terrifying atmosphere, instead making it all seem more real.

Without hesitation, I swiftly raised my sword and charged at the ghostly guards. Gripping the hilt with both hands, I swung it with all my might. The sword traced a beautiful silver arc through the air, slashing at the ghostly guards with immense force. However, to my surprise, my sword passed through their bodies unhindered, as if striking a mass of insubstantial air, causing no harm at all. My sword felt no resistance as it passed through the ghostly guards, as if slicing through nothingness. This filled me with astonishment.

"Ordinary attacks are useless against them. Magic is needed." Luo Chen said loudly while waving the wand in his hand at an extremely fast speed. His lips moved quickly, and a series of mysterious spells came out of his mouth. The sound of the spell echoed in the room, like an ancient language, full of mysterious power. Then, a blue magic light shot out from the tip of his wand and shot towards the ghost guard like a blue lightning. After the magic light hit the ghost guard, the ghost guard immediately let out a cry of pain. The cry was sharp and piercing, like the sound of sharp nails scratching on a blackboard, echoing throughout the room, making people want to cover their ears to escape this horrible sound. The sound seemed to be able to penetrate the soul, making our hearts feel a tingling pain.

I stood by, guarding the little boy like a solid fortress. My body, like a thick wall, firmly shielded him from any danger. Unblinking, I watched the fierce battle between Luo Chen and the ghost guards, my mind racing with thoughts of how to handle the daunting situation before me. My heartbeat raced, worrying whether Luo Chen could withstand the ghost guards' relentless assault. While Luo Chen's magic could inflict some damage, the ghost guards were simply too numerous, pouring out of the wall like a surging tide, seemingly endless and with no sign of stopping. The ghost guards' overwhelming onslaught filled me with a wave of despair, as if we were trapped in an inescapable trap.

"This isn't going to work. We have to find their source." I shouted at the top of my lungs, my voice resounding louder than ever amidst the clamor of intense battle, echoing clearly throughout the room. My voice was filled with anxiety, hoping Luo Chen could find the key to solving the problem quickly.

While Luo Chen struggled to fend off wave after wave of attacks from the ghostly guards, he anxiously searched for their source. His eyes scanned the room like a searchlight, not missing any possible place, not even the smallest corner. Beads of sweat gradually appeared on his forehead. Those beads of sweat did not freeze in the cold air, but slowly slid down his cheeks, but he was completely unaware. Suddenly, his eyes lit up, and he found that a pattern on the stone platform was flashing particularly strongly. The pattern looked like a violently beating heart, much brighter than the other patterns. The flashing pattern was like a beacon in the darkness, bringing us a glimmer of hope.

"I think the source is there." Luo Chen pointed to the stone platform excitedly, with a hint of uncontrollable excitement in his voice.

Without the slightest hesitation, I immediately picked up the little boy and rushed towards the stone platform. My pace was as fast as the wind, each step filled with firm determination, as if nothing could stop me. My heartbeat quickened with the quickening of my pace, and I had only one thought in mind: to reach the stone platform as soon as possible. Luo Chen stayed behind, continuing to stubbornly resist the attacks of the ghost guards. He waved his wand continuously, and beams of magical light continuously shot out from the tip of the wand, forming a seemingly solid barrier around him, temporarily blocking the ghost guards' tidal attacks and buying precious time for the little boy and I to rush to the stone platform. His figure looked a little tired under the reflection of the magical light, but his eyes remained firm.

As I approached the stone platform, I noticed a small groove on one side. It was so cleverly hidden that it would be hard to detect unless one looked very closely. The shape of the groove mirrored the small box the boy was holding, as if it had been custom-made for it. The fit between the two was perfect. The edges of the groove were perfectly smooth, as if meticulously polished, and fine lines were carved around them, seemingly connecting them to the larger pattern on the stone platform.

"This box might be the key." I tried to sound calm as I told the little boy, but my heart was filled with uncontrollable anticipation. My eyes were fixed on the groove and the box in the little boy's hand, as if at this moment, all my hopes were pinned on this box.

The little boy hesitated for a moment after hearing my words, a hint of worry crossing his tender face. After all, this little box might hold special meaning for him, and he wondered what would happen once he placed it in the recess. He clutched the box tightly in his small hands, a flicker of hesitation and reluctance in his eyes. But after a brief moment of deliberation, he ultimately trusted me and handed the box to me. With a mixture of trepidation and excitement, I carefully lowered the box into the recess. The moment the box was placed, the pattern on the stone platform suddenly erupted with a dazzling light, as bright as the sun, instantly filling the room and blindingly bright. The light, like a powerful force, instantly dispelled the darkness and cold, illuminating the room with warmth and brightness. As if controlled by some immensely powerful force, the ghostly guards retreated swiftly back into the wall. Their speed was as swift as ghosts, vanishing in the blink of an eye, as if they had never been there. The light seemed like an expulsion order to the ghost guards, making them dare not stay for even a moment.

"It seems we've found the right method." Luo Chen breathed a sigh of relief. He slowly lowered the wand he had been holding tightly, a tired yet gratified expression on his face. Although his face was exhausted, his eyes gleamed with a triumphant light, as if he had achieved a great victory in this battle against the Ghost Guard.

We continued our exploration of the castle, passing through one dimly lit corridor after another. Each corridor felt like a mysterious maze, filled with untold secrets waiting to be unravelled. Occasionally, strange markings appeared on the walls. These marks resembled ancient texts, or perhaps some mysterious symbols. We couldn't decipher their meaning, but we could sense a sense of mystery emanating from them. We opened one ancient, heavy door after another, each one seeming to conceal a completely unknown world, filled with endless possibilities. Each door creaked heavily as it opened, as if telling of years of loneliness and waiting. In a seemingly unremarkable room, we discovered an ancient book. Like an old man who had slept for years, it lay quietly, exuding an ancient and profound aura. The pages of the book had yellowed, a yellow that felt like the deep marks of time, a testament to its long history. The edges of the paper were frayed, as if eroded by the winds of time, or perhaps accidentally torn. It contains more information about the treasure, and that information may be the key to solving all the mysteries, finding the treasure, and preventing the evil forces from getting it. The binding of the book is a little loose, as if it will break if it is turned lightly, which makes us more careful when reading.

"This might be a big help in helping us find the treasure," I said excitedly, my eyes gleaming with excitement, as if I could already see the bright hope of finding the treasure and successfully stopping the evil forces. My heart was filled with anticipation, hoping that this book would be an important clue to solving the mystery.

We sat in the room, carefully opening the ancient book. The pages rustled softly in our hands, as if whispering the ancient story they held. Each page was so thin, it seemed as if it would break with the slightest pressure. We carefully pored over the ancient book, each word a priceless treasure, eagerly hoping to discover its exact location and how to prevent the evil from obtaining it. Our eyes moved intently over each line, afraid to miss a single crucial message.