Luo Wenyuan was cautious and used his earth-based abilities to explore the way, leading the three of them along the spiral stone steps towards the third floor.

At the end of the stone steps, the four of them saw a square brick and stone structure. Sixty rooms, each with a row of wooden doors, lined the four walls. The center was set up as a living room, with five or six long, high-backed, deep-set sofas. On the largest, six vampires lay slumped in a tangle of clothes: four men and two women, their clothes half-undressed, cuddled together, legs intertwined, sound asleep.

Four people hid on either side of the door. Luo Wenyuan stretched out his hands to support himself, frowning and shaking his head at Qingshan. The vampires in the room were all asleep, and there was no vibration from the ground, so Luo Wenyuan had no idea of ​​the number and distribution of vampires.

Qingshan gestured for peace of mind, touched the red light on his shoulder, pointed at the rows of small rooms, and winked. The red light quietly soared up, hovering in the air, vibrating its abdominal sonic boomerangs to emit infrasonic commands. Countless centipedes, cockroaches, and scorpions swarmed from the cracks in the walls and corners of the three-story space, slithering through the gaps in the wooden doors of the sixty rooms. Soon, the insects emerged one after another, counting their numbers at the red light, then dispersed, burrowing into the stone crevices and disappearing.

There were a total of 112 vampires on this floor. Besides the sofas in the living room, there were between one and four in each small room. After hearing Qingshan's report, Luo Wenyuan's expression grew even more serious. The three of them, along with Chen Qingshan, were going to have a difficult time taking out over a hundred vampires without making any noise and alerting the Four Knights.

Qingshan glanced at the vampire sprawled on the sofa. A plan struck him. He pulled out a spray gun from his tactical pack and waved it at Luo Wenyuan. The spray gun was loaded with Qingshan's newly developed, potent anesthetic powder—a decoction of five herbs: Datura, Aconitum, Arisaema, Trichosanthes, and Marijuana, with the addition of talcum powder and purified by hydrolysis. Qingshan had tested the powder on mice and found it was three times more potent than Datura pollen.

No matter how strong these vampires are, they can be brought down, but how can they absorb the powder? When vampires are asleep, their hearing and sense of smell are duller than usual, but they can still sense humans approaching. If only there were a breeze, the consequences would be disastrous.

Qingshan looked at Luo Wenyuan, puffed out her cheeks and made a blowing motion, spreading her hands to indicate that everything was ready except for the east wind. Luo Wenyuan saw Qingshan's round, dark eyes and puffed cheeks, which were so adorable that he felt an itch to pinch her little face, but unfortunately, he was in the middle of a mission. He clenched his fists and suppressed the thought. He understood what Qingshan meant. She wanted a gust of wind to blow the anesthetic powder into the stone chamber and make the vampires fall asleep.

Wind attributes are considered a variation of the Wood element, and this type of psychic is rare. However, the Five Elements can interact and transform. Luo Wenyuan has Earth and Fire attributes. Can this be transformed into Wind? He frowned, staring at the dirt on the ground in deep thought. After a moment, Luo Wenyuan's eyes lit up. He quietly walked to the area outside the door facing the third-floor living room, touched the slightly damp earth with his palm, and used the clay to form a strange mold according to the shape he had imagined in his mind.

The mold consisted of two funnels, a smaller one inserted at right angles onto the larger one. The bottom of the larger funnel was sealed, revealing only a palm-sized opening. Luo Wenyuan gently held the larger funnel side of the mold in his hand, his palm just enough to cover the opening. The mouth of the smaller funnel faced the living room.

Luo Wenyuan glanced at Chen Qingshan. The hand holding the large funnel suddenly erupted into an orange fireball, burning silently. A moment later, a gentle breeze blew from the mold's small funnel. Over time, the breeze grew stronger, becoming a gentle breeze that blew into the living room. Luo Wenyuan, holding the mold, a smug smile playing on his face, blinked at her, mimicking Qingshan's gesture on the plane.

Qingshan finally understood now. The underground castle was cold and dark. Luo Wenyuan was taking advantage of the uneven heating of the air inside and outside the mold to generate pressure, causing the air to flow from the large funnel to the small funnel, and the air flow formed wind.

Qingshan almost jumped up. Luo Wenyuan is so smart!

Qingshan was happy in his heart, and his face was smiling as brightly as a peach. He walked quietly to Luo Wenyuan, squatted down, and reached out to touch his head to show encouragement.

Luo Wenyuan saw Qingshan's peach blossom eyes, glittering like stars. The gently floating air currents lifted her hair, making her look like a fairy. He was so mesmerized that he almost extinguished the supernatural fire in his palm. Fortunately, Captain Luo had not completely lost his mind to lust and woke up in time to prevent the wind from stopping.