The Four Great Kings, upon receiving Lu Tianfeng's command, arrived at the Black Water Pool as quickly as possible.
At this moment, Lu Yang was locked in combat with the Terrifying Earth Dragon. However, the Terrifying Earth Dragon's strength was simply too immense, leaving Lu Yang with no option but to flee. Occasional punches thrown at the Terrifying Earth Dragon felt like striking iron plates; the creature remained entirely unharmed, while Lu Yang was forced back several steps.
"Yang'er, come back quickly!" Lu Tianfeng shouted to Lu Yang.
Hearing his father's call, Lu Yang immediately changed direction and leaped towards where Lu Tianfeng was.
"Dad, why are you here?"
Seeing his father and the four individuals behind him, Lu Yang immediately asked.
"This creature is known as the Terrifying Earth Dragon. It has transcended the state of a mere snake, becoming something far more ferocious. Having lived here for an extended period, its sentience has been awakened. Based on estimates, it should have slumbered for another ten years before awakening. How is it that you have roused it now?"
Lu Tianfeng explained to his son, then paused, puzzled.
"I saw a Life Flower by the Black Water Pool and wanted to check how long it would take to mature. Before I could even reach the Life Flower, this Terrifying Earth Dragon woke up!"
Lu Yang immediately pointed to the Life Flower, explaining to his father.
"Life Flower? The legend says it can regrow flesh and bone, and bring the dead back to life?"
Upon hearing the name, Lu Tianfeng's eyes lit up instantly.
"Yang'er, are you sure that thing is the Life Flower?"
Lu Tianfeng continued to ask Lu Yang.
"Yes, it's this very thing. I found it in the Ancient Medical Records, so it should be correct!"
Lu Yang stated directly.
"If that is the case, form the array and slay the Terrifying Earth Dragon!"
After listening to Lu Yang, Lu Tianfeng roared. The Four Great Kings behind him immediately unfurled a large net. They then positioned themselves at four corners and charged towards the Terrifying Earth Dragon.
The four individuals possessed formidable strength. Lu Yang felt that if he were to face any one of them, he could at best fight to a draw, with no certainty of victory.
Once the four had taken their positions, the large net directly covered the Terrifying Earth Dragon. Lu Yang saw the net flashing with silver light but could not discern its material. The moment the net ensnared the Terrifying Earth Dragon, it crackled with lightning, flickering all over the creature.
The sounds of "zi la zi la" mingled with the Terrifying Earth Dragon's "hissing" and exploded in the air.
Black smoke continuously billowed from the Terrifying Earth Dragon's body. It was evident that the net's power was inflicting damage, causing several scales to fall from its body.
However, Lu Yang had ultimately underestimated this Terrifying Earth Dragon. The notion of subduing it with just a net was likely impossible.
With a roar, the Terrifying Earth Dragon thrashed its body, tearing through the net. The moment the net broke, it lost all its energy, becoming a tattered web. With a flick of its tail, the enormous serpent shattered it into fragments.
The Four Great Kings, who had been anchoring the four corners, were also forced back several steps.
"Such terrifying power. It seems the Terrifying Earth Dragon's strength has increased considerably!"
Lu Tianfeng's expression changed dramatically as he watched the Heaven and Earth Lightning Net being broken by the Terrifying Earth Dragon. He waved his hand again, and the Four Great Kings drew their weapons and charged towards the Terrifying Earth Dragon. They attacked with clear division of labor, all targeting the Terrifying Earth Dragon's weak points.
The few scales that had been blasted off by the Heaven and Earth Lightning Net moments ago revealed the Terrifying Earth Dragon's most vulnerable spots. Its scales were like steel armor, impenetrable even to sniper rifles and impervious to cannon fire. But now, with the scales gone, the flesh beneath was exposed, allowing for damage to be inflicted.
The four moved with astonishing speed, matching Yuan Jishu. Soon, their weapons pierced the Terrifying Earth Dragon's flesh, and blood began to flow.
"These four are the Four Great Kings who guard the Youdu Prison. They are King Qin Guang, King Chu Jiang, King Song Di, and King Bian Cheng. Originally, there were Ten Yama Kings, but six have died, leaving only these four. I had intended for them to impart their skills to you, but now, with the battle against the Terrifying Earth Dragon, you should observe closely. Learn as much as you can!"
Lu Tianfeng said to Lu Yang.
"Yes!"
Lu Yang immediately replied.
At this moment, the four had their weapons embedded in the Terrifying Earth Dragon's body. The creature writhed in agony, letting out roars, while its tail lashed out at them.
The Terrifying Earth Dragon's tail possessed immense power, capable of easily flattening a train into a metal disc. Being struck by its tail would instantly crush someone into a pulp.
The four quickly dodged, and their weapons were flung from their grasp. The tail missed them but slammed into the Black Pool, sending water splashing tens of meters high. The Terrifying Earth Dragon twisted its body again and expelled the four weapons from its body.
"This..."
Upon witnessing this, everyone's faces showed terror. They had not expected the Terrifying Earth Dragon's strength to be even greater, and its intelligence had developed further, now akin to that of a five or six-year-old child.
"Quick, retreat!"
Lu Tianfeng roared, ordering the four to fall back behind him. However, it was too late. The Terrifying Earth Dragon spotted King Qin Guang, who was closest and most accessible for an attack. It lunged like lightning. King Qin Guang's face turned grim, and he leaped away from his spot. But as he was in mid-air, the Terrifying Earth Dragon's tail slammed down.
King Qin Guang's expression became exceedingly grim. Preparing to escape again, he made a second leap towards Lu Tianfeng. Before he could escape, the Terrifying Earth Dragon spewed a stream of venom, hitting King Qin Guang. He was instantly poisoned, and his body plummeted towards the pool.
Seeing this, Lu Tianfeng's eyes turned icy. He vanished from his position, caught King Qin Guang's body, and stepped on the Terrifying Earth Dragon, using the rebound to propel himself towards them.
"King Qin Guang!"
After reaching temporary safety, Lu Tianfeng immediately called out to King Qin Guang. However, King Qin Guang's face had turned dark; it was clear the poison had already infiltrated his internal organs.
"Dad, let me!"
Lu Yang stepped forward, producing silver needles and sealing King Qin Guang's vital points to prevent the poison from spreading further, temporarily saving his life.
"Yang'er, how is King Qin Guang?"
Lu Tianfeng quickly asked Lu Yang.
"His life is temporarily out of danger, but to cure his poison, the Life Flower may be needed. After we kill this Terrifying Earth Dragon, we can bring the Life Flower over!"
"I've carefully observed that Life Flower just now, and it has matured. It can be harvested!"
Lu Yang stated directly.