In front of Xiao Yu was a majestic and magnificent hall.

The length and width are more than ten kilometers, enough to be as big as hundreds of football fields combined, hundreds of finely carved pillars are neatly arranged, the height of each stone pillar is more than 500 meters, the diameter is enough to be fifteen or sixteen meters, even if dozens of people add up can not hug it, the pillars have extremely fine and gorgeous carvings, inlaid with brilliant crystal stones and magic gems that emit brilliant light.

Bang bang bang!

The Petrified Slime walks ahead, making a dull crunch with each step

Xiao Yu followed closely, looking down at his feet, the floor was completely made of obsidian, like black glass, and his own shadow was reflected on it.

The structure of the whole hall is integrated, full of indescribable beauty, such a magnificent atmosphere, the performance is extremely luxurious and magnificent, Xiao Yu doesn't have to think about it, the builder of this palace must be the giant clan, and only an excellent giant clan builder can build such an excellent temple.

It's just that there is nothing in the vast underground space, empty, full of deathly silence. Xiao Yu saw the gems on the pillars that shone with charming brilliance, resisted the urge to dig up one or two pieces and continued to walk deeper into the main hall. The purpose of this trip is not this, and before the "Book of Sand" is in hand, it is best not to cause trouble easily, so as not to cause extraneous branches.

The petrified slime's huge body walked step by step in the empty hall with heavy footwork, followed by the frost slime covered in cold air, Xiao Yu for the sake of safety, turned on the void state and floated in the air, little by little towards the center of the hall.

"Whoosh!"

As he walked, Xiao Yu suddenly heard a sharp sound of breaking the air, and several red beams of light shot at an extremely fast speed, hitting the frost slime first, and the frost slime was instantly dissolved into several large holes, and the whole slime turned into broken ice and spilled all over the ground. The petrified slime was also attacked several times, and the rubble on his body splattered, and he staggered back several steps.

Xiao Yu hurriedly stopped in mid-air.

I saw a group of tall monsters wearing black cloaks come out from behind a pillar, these monsters looked very strange, and there were many common characteristics of monsters, as if they were made of seven or eight kinds of creatures.

"Goblin Synthetic Life - Humanoid T300", early stage of the third order, elite level. Side Skill: 1, Blazing Beam (Level 3). 2. Assault Impact (Level 2)

"Intruders found...... Attack! ”

More and more goblin synthetic beings came out from behind the pillars around them, looking at the petrified slime and the gradually recovering frost slime with a wooden expression, and raised the mechanical metal left arm, only to see the palm of the hand fold backwards violently, and the wrist was almost snapped off, revealing a black hole, and the red beam of light instantly condensed in it.

Whoosh!

Countless unimaginably fast beams of light shot out and hit the two slimes in the middle, the frost slimes that became as splits only had second-order strength, and they were extremely fragile and afraid of fire attribute attacks. The third-order petrified slime that the mother body turned into was extremely brave, allowing the beam of light to continue to fall on the body, splashing rubble, but it did not cause fatal damage.

Four of the eight goblin synthesizers stopped firing, and with his right hand pulled out a short knife with a cold light from his waist, and when he pressed a button, several arcs of lightning jumped on the blade.

"Raid Impact...... Startup

The sound of Mu Ne sounded, and the four synths slammed into the ground, turning into four extremely fast meteors that bombarded the petrified slime from four different directions.

Xiao Yu kept giving orders to the slime, "Attack!" Attack! ”

The petrified slime suddenly let out a low roar, squatted down violently, clasped his hands in front of his chest, his legs contracted, his head shrunk into his chest, and his huge body turned into a huge stone ball. Immediately after that, the whole body spun like a spinning top, and the speed was so fast that only the sound of whirring breaking through the air and the sharp friction of a blow against the ground could be heard.

Level 3 Skill - Rolling Rock Crush!

The huge stone ball bounced off the ground and flew more than ten meters high, allowing it to fall at an incredible speed.

Impartially, it just smashed on the head of a goblin synthetic life, and the amazing force forced this magical creature to the ground, and the high-speed rotation produced an astonishing amount of crushing force, instantly squeezing out the internal organs of this synthetic life. The other synths raised their hands and unleashed a barrage of attacks at it, and the huge ball bounced violently, two of which landed on the body, leaving scorching trails and striking.

The huge Rolling Stone had already smashed into a T-300 Synthetic Lifeform, which had probably doubled since seeing the fate of its companion, and reacted quite quickly, even if it rushed backwards to dodge the attack, the huge stone fell in front of it. The T-300's right-hand dagger stabbed into the petrified slime's body, breaking through a large rock and preventing it from spinning.

The huge stone suddenly split apart, reverted to its normal shape, raised a fist larger than a grinding disc, and smashed it down with a thunderous force.

One blow!

Bang!

With a loud sound like thunder, the ground around ten meters collapsed, and the obsidian floor cracked into a large number of cracks, and the T300 was hammered directly into the obsidian floor. The petrified slime successfully solved the synthetic life, but there were no more than six of them but they fired at him at the same time, and the mutant slime's body was shattered in a large area due to the fierce attack, because the body was more and more damaged, and it was already a big injury, and the petrified slime turned into a boulder again, throwing it high, spinning and smashing at one of the synthetic lifeforms, failing to smash it flat but knocking the opponent out. After a fierce fight, the synthetic lifeform was eventually killed by the petrified slime.

However, due to too many attacks, the petrified slime's body was damaged, and it was difficult to continue to support it.

Xiao Yu floated above his head and watched the fight, the spirit fire gun in his left hand aimed at the center of the chest of one of the T300s. As far as he knew, goblins' magic synthesis monsters tend to concentrate their life force at one point during the crafting process, so that even if the monster is hit by any vital point during the battle, or even if its head is shattered, it will not die immediately.

After observation, Xiao Yu judged that the life core of T300 was in this part.

When the petrified slime was losing ground under the siege of T300 and was about to be unable to support it, Xiao Yu finally waited for an excellent opportunity, pulled the trigger violently, and launched the skill: Piercing One Blow!

A bullet shot into the chest of one of the T300s at an incredible speed, and the powerful Level 3 skill entered directly from the chest, shattering the Life Crystal Nucleus and then penetrating through the back, just landing on the second T300, piercing the armor and entering the chest to shatter the Life Crystal Nucleus.

When they looked up, Xiao Yu pulled the trigger one after another, and all four or five shots hit the same T300, all of which were armor-piercing bullets with huge penetrating power, and a T300 retreated again and again, Xiao Yu took advantage of the situation to wave the killing blade, and the sharp killing blade easily cut off its head.

The remaining two goblin synthetic lifeforms were quickly resolved by the joint efforts of the petrified slime Xiao Yu.

These creatures drop almost nothing, and even have a pitiful lack of energy.

Xiao Yu screamed bad luck.

The petrified slime has been seriously injured, Xiao Yu put away the slime, opened the void and slowly walked towards the main hall alone, there were many goblin synthetic magical lifeforms on the way, some of which were more advanced synthetic lifeforms, Xiao Yu did not provoke them, but went around from the top of his head, without alarming any of them.

Xiao Yu suddenly found that there was a circular altar in front of him, the volume was not very large, about thirty meters in diameter, the altar was about ten meters high, there were steps on all sides, eight stone pillars like fangs were bent from the center of the altar, and the tip was pointing to an ancient booklet on the table in the center of the altar, and the dust on it was a foot thick.

Is that ...... Book of Sand?

Xiao Yu immediately felt refreshed when he saw the book on the altar, carefully observed the surroundings, and after making sure that there was nothing unusual, he slowly drifted towards the altar, five meters, four meters, three meters...... One meter, and finally Xiao Yu landed smoothly on the altar.

Nothing out of the ordinary happened.

Xiao Yu flew towards the sacrificial table little by little, and the local yellow simple ancient book lay tightly on the sacrificial table engraved with magic symbols.

"This is the legendary Book of Miracles? I can't really tell it from the outside. ”

Xiao Yu took a deep breath, slowly stretched out his hand, and after placing it on the ancient book, he lifted the virtual state, and the materialized palm pressed on the ancient book at once, and his spiritual power quickly swept towards it.

"Experimental Notes on the Synthesis and Transformation of Living Organisms", items left over from ancient high-class goblins, special items, no grade.

Xiao Yu hurriedly opened the book, which recorded some steps and methods of biological transformation, and a thick book full of tadpole-like high-grade essences. Xiao Yu was stunned for a moment, he couldn't understand the text and content at all.

The only thing that is certain is that this is not the Book of Sand, it is just a research notebook of high-class goblins!

"Intruders found...... Spotting the intruder ......"

Xiao Yu was stunned, and suddenly a piercing voice like a bell echoed in the main hall, and then a huge shadow shrouded from overhead.

"Oops!"

Xiao Yu felt an unheard-of powerful aura enveloping the entire hall in an instant.