Earth's catastrophe, crazy black crystals begin to wreak havoc

He poured the liquid into the lake, and the lake immediately gave off a strange light, and the fog began to slowly dissipate. The two saw a small island in the middle of the lake, and something seemed to be flickering on the island.

"That's them!" Shi Potian's voice was filled with excitement. He immediately jumped into the lake and swam towards the island.

Ouyang Yuyan followed the figure in front closely, shuttled through the lake like arrows, and the speed of the two of them was staggering. As they gradually approached the mysterious island, a sudden change occurred, and the lake began to surge violently, as if being stirred by an invisible force. Suddenly, a huge, ferocious-looking water monster rushed out from the bottom of the lake. Its eyes were shining with an eerie green light in the darkness, exuding a creepy and terrifying aura.

"Be careful!" Ouyang Yuyan shouted loudly, her voice echoing in the night sky. Without hesitation, she took out a special bow and arrow from the backpack behind her, her movements skillful and agile. The arrowhead shone coldly in the moonlight. She placed it steadily on the bowstring, aimed at the water monster's shining green eyes, let go and fired. The arrows flew out like lightning, heading straight towards the water monster with a fierce momentum.

At the same time, Shi Potian also responded quickly. He drew out the extremely sharp sword from his waist, flashed, and rushed towards the water monster like a ghost. The sword blade drew a dazzling arc in the air, and a thrilling battle began with the water monster. The lake created turbulent waves during their battle, and the moonlight shone down, reflecting a shocking battle scene.

Ouyang Yuyan's archery skills were precise, and every arrow hit the critical part of the water monster. However, this powerful water monster seemed to have tenacious vitality. Although it was severely injured, it still pounced on Shi Potian with great ferocity. Shi Potian relied on his superb swordsmanship and agility to skillfully avoid the water monster's attacks time and time again, and looked for opportunities to counterattack.

In this life-and-death struggle, Ouyang Yuyan and Shi Potian worked closely together and had a perfect understanding of each other. The meeting of their eyes conveyed firm belief and fearless courage. The roar of the water monster and the rolling of the lake water echoed around, filling the entire lake with a tense atmosphere. However, they were not swallowed up by fear, but instead aroused their inner fighting spirit.

After a fierce battle, the two finally defeated the water monster and the lake returned to calm. They climbed up the island and found the trapped Mark, Prince Peach Blossom and Emperor Shirou.

Ouyang Yuyan frowned, and her intuition told her that something was wrong. "Mark, why did your voice... become so soft?" she asked cautiously, while her eyes were fixed on the huge looming tail behind Mark.

Shi Potian also noticed the abnormality, and his hand involuntarily clenched the hilt of the sword. "Mark, you...are you really Mark?" There was a hint of doubt in his voice.

A strange smile appeared on Mark's face, and his eyes suddenly became deep and mysterious. "Of course I am Mark, but...I also have a new identity." There was an indescribable allure in his voice.

Suddenly, Mark's body began to change, his skin became smooth and moist, and his lower body gradually turned into a huge whale shark tail. His eyes turned dark blue, emitting a faint light.

"What the hell is this!" Shi Potian exclaimed, and he immediately drew his sword and prepared to fight.

Ouyang Yuyan also reacted quickly. She took out a special net from her backpack and prepared to capture the mutated Mark. "We have to be careful, this may be some kind of illusion or curse." There was a hint of nervousness in her voice.

Whale shark Mark suddenly let out a sharp cry, flicked his tail, and the lake immediately set off huge waves, hitting Shi Potian and Ouyang Yuyan.

"Get away!" Shi Potian shouted, and he quickly jumped aside to avoid the impact of the wave.

Ouyang Yuyan used her agility to jump onto a nearby tree and observed the whale shark Mark's movements from a height. "We must find his weakness!" she shouted.

Shi Potian nodded, and he began to move around the whale shark Mark, trying to find an opportunity to attack. Suddenly, he noticed that Whale Shark Mark's eyes seemed to be his most vulnerable point.

"His eyes! Attack his eyes!" Shi Potian shouted loudly. He immediately rushed towards the whale shark Mark and stabbed his eyes with his sword.

Ouyang Yuyan also jumped from the tree. She threw the net at the whale shark Mark, trying to restrict his movement.

Whale Shark Mark let out an angry roar and swung his tail violently, trying to repel Shi Potian and Ouyang Yuyan. But the two cooperated tacitly, and Shi Potian's sword accurately hit the whale shark Mark's eye, while Ouyang Yuyan's net also successfully entangled his tail.

"Quick, take advantage of the moment!" Ouyang Yuyan shouted. She quickly took out a vial containing a mysterious liquid from her backpack and sprinkled the liquid on the whale shark Mark.

After the liquid came into contact with Whale Shark Mark's skin, it immediately emitted a strange light. Whale Shark Mark's body began to tremble violently, and his form gradually changed back to Mark's appearance.

"I...what's wrong with me?" There was a trace of confusion in Mark's voice, and his eyes returned to normal.

Shi Potian and Ouyang Yuyan immediately stepped forward and helped Mark up. "You are controlled by some kind of force, but we have helped you lift the curse." Ouyang Yuyan explained.

A grateful smile appeared on Mark's face, and his eyes were full of trust in his two friends. "Thank you, if it wasn't for you I might never have recovered."

Shi Potian held the sword hilt tightly, his eyes scanning the surroundings sharply, as if looking for any possible clues. "Mark, did you see Prince Peach while you were trapped? Do you know where he might be trapped?" There was urgency and worry in his voice.

Mark shook his head, a trace of confusion flashing in his eyes. "I'm not sure. I just remember that when we were exploring the island in the middle of the lake, we were suddenly sucked away by a powerful force. After that, I lost consciousness until you rescued me."

Ouyang Yuyan frowned. She took out a worn map from her backpack and began to study it carefully. "We must find Prince Peach. He may have encountered a similar dilemma." She moved her finger on the map, trying to find possible clues.

Shi Potian nodded and turned his eyes towards the island in the middle of the lake. "We have to go to the island in the middle of the lake to have a look. There may be clues we need there."

The three of them took action quickly. They walked through the forest and headed towards the island in the middle of the lake. The atmosphere in the forest became increasingly tense, and strange sounds could be heard from a distance from time to time, as if something was watching them secretly.

Soon, they came to the lake again. The lake looked extremely calm under the moonlight, but the island in the middle of the lake was shrouded in a mysterious fog. Shi Potian and Ouyang Yuyan stood by the lake, their eyes full of vigilance.

"We must find a way to get through this fog." Ouyang Yuyan said, with a hint of nervousness in her voice.

Shi Potian nodded and took out a vial filled with mysterious liquid from his backpack. "This is the power we extracted from the tablet. Maybe it can help us."

He poured the liquid into the lake, and the lake immediately gave off a strange light, and the fog began to slowly dissipate. The three of them saw a small island in the middle of the lake, and something seemed to be shining on the island.

"That's them!" Shi Potian's voice was filled with excitement. He immediately jumped into the lake and swam towards the island.

Ouyang Yuyan and Mark followed closely behind, and the three figures advanced rapidly in the lake. As they approached the island, suddenly, the lake began to fluctuate violently, and a huge water monster rushed out of the water. Its eyes flashed green in the darkness, exuding a terrifying aura.

"Be careful!" Ouyang Yuyan suddenly shouted loudly, her tone extremely anxious. At this time, she took out a carefully crafted special bow and arrow from her backpack without hesitation and held it tightly in her hand. She quickly adjusted her posture, aimed accurately at the water monster's fearsome eyes, and then shot an arrow decisively.

At the same time, Shi Potian also showed amazing reaction speed. He quickly pulled out the sharp sword hanging from his waist and rushed towards the water monster like lightning. In an instant, a thrilling fierce battle broke out in the lake. The lake was agitated by their fierce battle, and under the moonlight, the entire battle scene looked even more thrilling.

After a long and hard battle, the three finally worked together to defeat the powerful water monster. The lake gradually returned to its former calmness, as if nothing had happened. They successfully defeated this huge threat, and their hearts were filled with the joy of victory and a sense of accomplishment.

Then, they climbed up the island with difficulty and began to look for the trapped Peach Blossom Prince. Every step is full of anticipation and tension, not knowing what kind of situation we will face next...

"You are finally here!" Prince Peach Blossom's voice was a little tired, but his eyes were full of gratitude.