"How?" asked Nano.

"The demon knife is bloodthirsty, as long as you feed it enough blood, it may be possible for it to break through the seal temporarily. You first let this demon knife absorb the blood of that monster, and then give it to someone who can use ordinary sword energy, and you will definitely be able to slay this monster. ”

"But, now it's just the two of us, where can we find someone who knows ordinary sword qi?"

"Occasionally, borrow it on my shoulder, too. I heard a weak voice coming.

"Ziyuan!"

Mingwu was stunned, only then did he find that Ziyuan had woken up.

At this moment, Ziyuan was still being held by Ah Qiu, his face was pale, and he kept coughing, very weak, but his eyes were very firm.

Suddenly, overhead, the monster roared, and one arm actually spun up, like a tunnel drill bit, drilling towards the wall below, and this arm stretched freely, stretched into hundreds of meters, and in an instant, it made a large hole in the fifty floors of the ground.

The positions of the three were immediately exposed in front of the monster.

"Nano, I'll leave it to you for the time being!" Ah Qiu threw the demon sword blood pupil to Nano, and continued to run down.

"Hmm!" Nano took the demon sword, stopped, and looked at the monster overhead.

At this moment, the huge mouth of the monster's neck moved slightly, and suddenly opened, spewing out a huge pillar of fire, coming towards the nameless.

Nano deftly dodged and quickly jumped upwards, quickly rushing towards the monster's stomach, then raising his demon knife and slashing it with all his might.

But

Just as the demon knife was about to slash into the monster's stomach, it disappeared on the spot. By the time Nano came over, the monster had already appeared under the hole.

"This reaction speed, this destructive power, this space jumping ability!" looked at the monster below in disbelief, "This is simply a giant fighting machine! Who created this monster?"

But now was not the time to hesitate, and Nano turned into a shadow and rushed towards the monster again. At this moment, the monster turned its arms again and burrowed downstairs.

Just as Namu was about to land on the monster's back, suddenly two white tentacles flew towards Nano.

"Get out of the way!"

Nano was in the air, rolled over, dodged one tentacle, and slashed the other with the demon knife, flying straight to the monster's back.

Then, the demon knife stabbed straight at the monster......

I saw a figure burrow into the monster's body from the back, and then I saw the monster scream, fell to the ground, rolled up, and slapped the ground wildly with its limbs, and hundreds of kilometer-long tentacles grew out of its body, whipping away in all directions.

But where the tentacles were whipped, the walls were shattered.

The ancient castle, which was nearly a kilometer long and wide, was broken into two sections from the place where the monster was located in an instant. More than 100 floors above, because of the ground connected to the patio, it has not fallen.

After struggling for a while, the monster suddenly stopped, and the tentacles also withdrew from its body.

Then, a man covered in blood flew out of his body, only to see that the long knife in his hand was floating with a faint black gas.

Taking advantage of the monster's pause, Nano hurriedly ran downstairs with a demon knife, and as soon as its figure disappeared, the monster stood up again, only to see that its white skin, starting from the head, had all turned into pitch-black and shiny scales.

The monster roared in the sky, and the ten thick fingers, the pitch-black nails, slowly elongated, and finally turned into a ten-meter-long sharp scythe.

Then the monster, fluttering its paws like a burrowing rat, buttocks up and head down, digging frantically.

Fifty floors down.

Suddenly, the monster stopped, its eyes widened, and it looked in horror at a man below. The man held a long knife that emitted black gas in his hand, closed his eyes, and stood under the monster.

"Go for it, Pikachu! No, Ziyuan!"

Hearing only a shout, Zi Yuan suddenly opened his eyes, brandished the demon knife and slashed upward, and two crossed black sword qi slashed through......

Everyone looked at the monster.

Time seems to freeze in this moment.

But......

I saw that the corners of the monster's mouth suddenly curled slightly......

"You guys are so fun!"

The voice, like a whisper in the ear, was low and dark, made up of seven or eight voices of different ages.

Everyone was shocked, only to see a pair of huge black wings suddenly spread out from both sides of the monster, instantly covering the monster in front of him.

The two black sword qi hit the wings and were unexpectedly bounced away. The sword qi continued to fly, slicing two rifts into the wall of the castle overhead.

"Isn't that okay?"

At this moment, not only Ziyuan, but even Ah Qiu was a little desperate, and he couldn't believe what had just happened.

"Get out of the way!"

At this time, Na Wu shouted and rushed towards Ziyuan.

Above, the monster suddenly moved its huge black wings, and saw countless black feathers nearly ten meters long, shooting down at an extremely fast speed.

Nano took Ziyuan to dodge the rapid feathers and jumped out of the castle. Ah Qiu also followed and jumped out of the castle.

And the countless huge feathers continued to hit the castle, and after a while, the castle was smashed to only half of it.

At this time, the monster noticed that the three people jumped out, immediately stopped shooting with their feathers, flapped their huge wings, flew up, and rushed towards the three people who fell in the air.

The three of them fell to the ground first, it was still raining heavily, lightning and thunder, and the world was pitch black.

With the whirring sound of the wind as its wings flapped, flames erupted from the monster's mouth, whistling towards the trio.

At this time, Zi Yuan was standing on the ground, looking at the monster in the sky with both eyes, and his whole body was wrapped in a black aura, which floated upwards, driving Zi Yuan's shabby clothes and scattered long hair.

"Ziyuan, you ......!"

Na Wu and Ah Qiu looked at Zi Yuan in disbelief, this man who looked weak and couldn't help but hold the demon knife tightly.

"Don't! you'll be corrupted by demonic energy!" Ah Qiu wanted to stop Ziyuan.

But......

"When this is all over, I want to eat another meal, the grilled fish you prepared for me!"

Ming Wu was stunned, and watched Ziyuan pass by him blankly.

Zi Yuan raised the demon knife with both hands, took a step forward, roared, and slashed towards the monster in the air......

"This time, you can do it well, and break Uncle Ben in half!"

A kilometer-long black sword qi flew towards the monster, at this time the monster was spewing flames, suddenly, the sword qi slashed, and the monster's body, starting from the head, was like a piece of bamboo that had been split, and it was actually split in half. The two halves of the body, due to inertia, continued to fly towards the three people, and hit the ground on the left and right sides of the three people, sliding for hundreds of meters before slowly stopping.

And these two halves of the body are still not dead, and the incision begins to grow blood and flesh again.

However, at some point, hundreds of skeleton animals gathered nearby, and they roared, slowly approaching the monster's body, and finally swarming up, tearing up from the cut position, and in a short time, the monster was gnawed to the ground, leaving only a skeleton and a hard skin.

And Zi Yuan, at this time, black gas bubbled out of the seven orifices. Suddenly, he turned around, his eyes showed a fierce light, and he rushed towards Mingwu with a demon knife.

Na Wu smiled slightly, "Ziyuan, you must be very hungry." It's time to get out here and have a big meal. ”

The demon knife slashed towards the top of Nano's head, and Nanoshi remained motionless.

Seeing this, Ah Qiu immediately pulled out his long knife and ran towards Mingwu.

At the moment when the demon knife was about to fall, a long chirp suddenly sounded, and the demon knife actually stopped.

Then, Zi Yuan put down the demon knife, touched his stomach, and laughed a little embarrassedly, "I'm hungry!"

Ah Qiu looked at the two of them, breathed a sigh of relief, and a relieved smile appeared on his face......