The mutant fire bat king opened his blood-red eyes, kept fanning the black and red bat wings, hovering in mid-air, and invisible coercion emanated from the mutant fire bat king's body.

Invisible sound waves came out of the mouth of the mutant Fire Bat King, and the silence in the cave was extremely quiet, but Ye Xingyu and Yin Feng Liu'er's heads exploded.

"Ding, you are suppressed by the spiritual realm, and all attributes are reduced by 10%"

"Ding, the system has determined that you have entered a state of stasis, and your movement speed is -20%"

Ultrasonic concussion, this mutant Fire Bat King's innate skill can actually suppress mental power.

When people's mental power is suppressed, their reaction speed will be sluggish, and the sluggishness of their reaction speed will cause dullness and uncoordination of their body movements.

This boss's natural skills are really powerful.

Ye Xingyu only felt that his head was a little messy like paste, but he could still see the situation around him clearly.

On the other hand, because of Feng Liu'er, her mental power is far inferior to Ye Xingyu, at this time, she is already swaying like a drunk, as if she may fall down at any time.

Just when Ye Xingyu was still adjusting to the dizziness in his head, he suddenly had a feeling of extreme danger.

Ye Xingyu secretly said that something was wrong, and instinctively threw himself to the side.

The next moment, a gust of cold wind came from behind him, and he felt a sharp pain coming from his left arm, and 80% of the true damage made his left arm tremble slightly.

“-198！”

A bright red number floated out of his head.

Just this blow knocked out nearly one-third of Ye Xingyu's blood volume, and coupled with the blood volume lost before, Ye Xingyu's blood groove was suddenly only about a quarter left.

Ye Xingyu endured the pain in his arm and hurriedly moved his body to a place close to the stone wall to minimize his blind spot.

Psychic Eyes!

The intense pain made his spirit sober up temporarily, and seizing the moment, he did not hesitate to use his psychic eye.

"Immunity, Resistance, Mental Negativity Clearing"

The rich fire attribute aura around the mutant Fire Bat King's body was instantly captured by Ye Xingyu's psychic eye, and the chaotic state of his brain was also alleviated.

However, Ye Xingyu did not relax in the slightest, because the mutant Fire Bat King had already swooped towards him again.

Wolf Step!

The 8% movement speed bonus and the 10% negative status offset most of it, and Ye Xingyu was able to flexibly reverse jump, and he escaped with the backlash of the stone wall.

Seeing this, the mutant Fire Bat King opened his mouth slightly, as if he wanted to send out an ultrasonic shock again.

Seeing this, Ye Xingyu sneered, and stabbed a sword at the throat of the mutant Fire Bat King.

Seeing this, the mutant Fire Bat King waved his flesh wings and wanted to retreat, but at this moment, it was a mutant protrusion!

A cold dagger appeared before its eyes.

"Whew!"

A blood-red line of blood bloomed in the eyes of the flame bat, but it was because of the wind that had just woken up that entered the stealth state and seized the opportunity to hit its eyes with one move!

"Critical Attack, -100"

"Trigger Effect: Damage Blind"

The great pain in his eyes caused the mutant Fire Bat King to roll around.

"Good chance!"

Ye Xingyu looked at the constantly tumbling mutant Fire Bat King, and rushed towards it with an arrow step.

Although the mutant Fire Bat King was blind, with the unique ultrasonic positioning of bats, it also sensed Ye Xingyu's attack, endured the pain and danced the two fleshy wings, wanting to slap this ant that didn't know whether it was alive or dead.

Just before the meat wings were about to touch Ye Xingyu's body, the corners of Ye Xingyu's mouth rose slightly.

Blue Tier Technique, Dimensional Fluctuations!

The huge force hit the body of the mutant fire bat king, and the mandatory knockback effect of dimensional fluctuations was three meters, and at this moment, the distance between the mutant fire bat king and the stone wall on one side was only a little more than two meters.

"Ding, system judgment, knock effect trigger, 2 seconds"

"Ding, system judgment, stun effect trigger, 2 seconds"

Ye Xingyu's eyes lit up, the long sword in his hand was indomitable, and a sword pierced the throat of the flame bat.

"Critical Hit, Vital Attack, -210"

"Critical Attack, -150"

"Bleeding damage is active, -5 HP per second, duration 60 seconds"

The huge pain made the mutant Fire Bat King flutter in all directions, and Ye Xingyu had to temporarily give up the attack and retreat a few steps.

"Ding, the mutant Fire Bat King has entered a berserk state, with -50% defense and +30% attack"

Ye Xingyu and Yin Feng Liu'er looked at the mutated Fire Bat King who was bumping around in the stone cave, and they both smiled slightly. This wave of cooperation is ingenious to the extreme.

Just when Ye Xingyu and Yin Feng Liu'er were about to wait for the life breath of the mutated Fire Bat King to be reduced to the weakest before making a move.

The mutant Fire Bat King suddenly stopped in mid-air, and his whole body curled up into a ball, like a ball of flesh, and turned red.

The two of them looked at the situation in front of them and were a little confused, not knowing whether they should step forward and attack.

"The temperature around here seems to be rising!" Ye Xingyu suddenly felt a little bad.

"Ding, Elite Boss Hidden Passive Trigger, Life Explosion"

As soon as Ye Xingyu heard the system prompt in his ear, he suddenly seemed to think of something, and hurriedly took a step in front of Yin Feng Liu'er.

Then, all I heard was "Bang! With a bang, the mutant Fire Bat King exploded without warning, and the monstrous flames turned the surrounding space into a sea of fire, drowning the figures of Ye Xingyu and Yin Feng Liu'er in it.

The flames spread out in all directions, and it took a full minute for them to stop, and the surrounding stone walls were already red.

When the flames dissipated, two figures appeared on the edge of the flames.

"Ding, congratulations on killing the mutant Fire Bat King, experience +500"

Ye Xingyu looked at the two water-based talismans in his hand that had turned into fly ashes, and then looked at the blood groove that he only had less than 20% left, and sighed secretly, it was so dangerous.

If it weren't for the loss that the stone wolf puppet beast had suffered before, it would have to die again this time.

Looking at Ye Xingyu who was blocking in front of him, Yin Feng Liu'er was slightly touched in her heart.

After the two replenished their blood, they waited for the remnants of the flames to dissipate before they walked to the place where the mutant Fire Bat King exploded to check the harvest this time.

When he saw the items that the mutant Fire Bat King burst out, Ye Xingyu felt that the trip was worthwhile, even if there was no gain in the future, it was worth coming to this trip.

A total of two items were dropped, a skill book, and a dagger.

【Ultrasonic Shock】

Tier: Blue Tier

Skill introduction: Through high-frequency sound waves to the enemy's mental perception, it causes concussion attacks, which have a strange effect of interfering with the spirit of thinking.

Causes mental dormancy to single or multiple targets, and the dormancy time is determined by the difference in mental power between the two parties.

Cooldown: 10 minutes

Note: The skill effect is inversely proportional to the number of selected targets and directly proportional to the mental strength.

The other item is a dagger.

Bloodthirsty Dagger

Tier: Blue Tier

Attribute bonuses:

Attack +30

Attack Speed +10%

Only passive: Bloodthirst, attack comes with 5% lifesteal"

Ye Xingyu chuckled lightly and touched the inconspicuous Guardian Ring on his hand, this is the horror of ten o'clock full of luck.

However, the division of things made it difficult for him.

The blue-level skill book is obviously more valuable than the blue-level equipment, and although he wants the skill book very much, he also knows that this is a little unfair to Yin Feng Liu'er.

"Idiot, this dagger belongs to this girl! You can't rob me! Because Feng Liu'er stepped forward in a few steps to pick up the blue dagger, raised her little face and smiled happily.

Looking at Yin Feng Liu'er, who was holding a dagger and waving it for a while, Ye Xingyu smiled.

"Well, this dagger actually has its own blood, I really want to test its power." Because of the wind, Liu'er suddenly looked at Ye Xingyu with bad intentions and said.

"I'm a wounded, don't beat my mind." Ye Xingyu was stunned for a moment, and hurriedly waved his hand.

"It's okay, I'll give it a try." Because Feng Liu looked at Ye Xingyu with the eyes of a mouse, revealing two cute little tiger teeth.

Ye Xingyu's face changed suddenly, and he looked behind Yin Feng Liu'er.

"Want to deceive this girl? I'm not that stupid. Because of the wind, Liu'er said to Ye Xingyu.

"Squeak~", a shrill voice suddenly came from nearby, and this cry was like a fuse, triggering a series of chain reactions.

"Squeak~"

"Squeak~"

More and more voices echoed through the cave.

Ye Xingyu and Yin Feng Liu'er looked around, only to see that there were several small caves scattered in the mountain wall, and a pair of blood-red eyes only lit up one after another in the dark and secluded cave.

Ye Xingyu and Yin Feng Liu'er glanced at each other and were surrounded!