"But what about the rats? They all ran away just now! Nangong Xue said indignantly.

"The biggest feature of hidden rats is that they are hidden, no one has ever seen their bodies, every time they see their shadows, they are not so easy to deal with." Qu Huaiqi said.

"They have harmed Yu'er like this, and they must not be able to bypass them." Nangong Xue clenched her fists and said.

"I'm going to deal with Hydra first!" Yue Linglong said lightly.

"Linglong, that hydra is too cunning! I'll go with you. Nangong Jin said.

"We'll go too!" Chu Mohan and the others also wanted to go with them.

"I'll go alone, you stay and take care of Xiao Yu'er, in case the hidden mouse counterattacks, everyone can take care of it." Yue Ling said.

"But Linglong ......" Nangong Jin really didn't worry about Yue Linglong going into danger alone.

"It's decided! I've got it enough to deal with that hydra, and besides, I still have a strange fire, so you don't have to worry. Yue Linglong shook the fire phoenix whip in his hand and said.

Seeing that Yue Linglong was so resolute, Chu Mohan and the others no longer insisted, surrounded Qu Huaiyu in the middle, and looked around vigilantly.

Just as Yue Linglong said, the hidden mouse really counterattacked, and the two sides quickly fought.

Yue Linglong has telepathy with the Netherworld Heart Fire, on the right side of the underground passage, there is a fork in the road, she stepped into the fork in the road, and walked deeper along that induction, the further she went, the lower the temperature, the more humid the air became, the two sides of the stone wall were also covered with green moss, and there was a strong fishy smell.

"You two hateful fires, you're so angry with the old lady!" The Hydra's angry voice came from the depths.

Yue Linglong walked closer and found that this was a relatively large cave, about 1,000 square meters, the air here was more cold and damp, and the fishy smell was stronger, it was hard to imagine that in the depths of the boundless desert, there was such a cold place!

The hydra was in a mess, desperately dodging Xiao You's and Xiao Jin's attacks, the nine snake heads on his head were hanging weakly, and Xiao You and Xiao Jin were having a lot of fun, a bit like a cat playing with a mouse.

"Xiao You, Xiao Jin, don't make trouble! Quick! Yue Linglong said.

Yue Linglong knew that this underground passage didn't know how many dangers were hidden? Sooner or later, the hydra must be dealt with quickly.

"Why do you want to kill all of you, you abominable human? The old lady didn't do anything to you! The hydra was so angry that it yelled at Yue Linglong as it dodged.

"Huh...... I, Yue Linglong, pride myself on not being a good person, but I won't kill innocents indiscriminately, provided that you don't mess with me! Yue Linglong's cold voice sounded.

She was full of murderous energy, like a sharp sword ready to go out of her body at any time, Hydra couldn't help but shudder, and felt a little regretful in her heart for provoking Yue Linglong and the others.

"Huhu~" Xiao Jin and Xiao Yu turned into several nets of fire, attacking from all directions, firmly encircling the Hydra, the Hydra stood in place, as if forgetting to resist, and the flames were reflected in her pupils, becoming clearer and clearer.

"Hiss~" The nine snake heads on the head of the hydra raised their heads to the sky and screamed, and the crimson snake letter kept swallowing, as if sending some kind of signal.

"It's not good, this hydra may have accomplices, it's really careless." Yue Linglong secretly screamed in her heart.

Finally, the hydra was wrapped in dumplings by Xiao You and Xiao Jin, and before it could scream, it turned into ashes, Yue Linglong hurriedly withdrew the strange fire, and the white shadow flashed and disappeared in place.

"Boom~" The stone wall of the cave suddenly cracked, and a small hill-like hydra crawled out of it.

It was pitch black, with the head of a male, a gloomy face, inverted triangular eyes full of viciousness, and nine snake heads on its head, which were even more hideous and terrifying than the previous Hydra.

"Lu'er, my Lu'er! Who is it? The nine-headed black snake roared.

It was originally cultivating in the stone wall, but when it heard Lu'er's distress signal just now, it was so anxious that it hurriedly stopped cultivating and rushed out, but it didn't expect it to be a step too late.

......The nine-headed black snake was grief-stricken, and the crimson snake letter kept spitting out.

The huge snake tail swung and chased after the scent of the nine-headed green snake.

Yue Linglong had just walked a short distance when he found a sound of "squirming" behind him, accompanied by a strong killing intent, Yue Linglong stopped and looked behind him.

"It's you, it's you who killed my Lu'er, looking for death!" The nine-headed black snake was furious.

It used the snake letter to sense that Yue Linglong still had the smell of Lu'er on her body, so it must have been the human in front of her who killed Lu'er.

"Huh...... It wants to eat me, but this girl can't let it eat while standing. Yue Linglong said coldly.

"Less nonsense, take your life." The nine-headed black snake said fiercely.

The nine snake heads on the skull opened their huge mouths at the same time, spitting out a black mist.

In an instant, the black mist filled the surroundings, and Yue Linglong was also submerged in the black mist.

"Lu'er, my husband finally avenged you!" The nine-headed black snake said sadly.

"I'm afraid I'm going to disappoint you!" Yue Linglong's cold voice came from the black mist.

"How...... How can it be? You're not dead! The nine-headed black snake looked at Yue Linglong, who was unscathed, and said in disbelief.

"Is that all there is to it?" Yue Linglong scoffed.

"Hiss~" Seeing that the poisonous gas did not work, the nine-headed black snake attacked again.

I saw nine snake heads shoot out quickly, open their huge mouths, and only pounce towards Yue Linglong.

"Pap~" Yue Linglong took out the fire phoenix whip and danced up and down, every time she could draw a snake head, a black whip mark would appear on the snake's head.

But the nine snake heads were still biting Yue Linglong as they were not afraid of pain, Yue Linglong could only resist while retreating, she flicked her water sleeves, and two flames, one blue and one gold, flew out from her cuffs.

"Huhu~" Xiao You and Xiao Jin directly grew larger, burning the nine snake heads into ashes.

At this moment, nine snake heads grew on the head of the nine-headed black snake again, regardless of attacking Yue Linglong again.

"Die! Die! The nine-headed black snake shouted hysterically as if it had fallen into a state of madness.

Yue Linglong hurriedly asked Xiao Jin and Xiao You to arrange a wall of fire in front of him to prevent the snake head from approaching.

"Master, this nine-headed black snake is much higher than the previous one, its human head is its flaw, cut off its head, it will definitely die." A small voice came from inside the delicate space.

"Master, let me out, Master Long can smoke it into meat puree with one tail!" Xiaoice said.

"No, you were already targeted by that demon path last time, and if you show up again, you will probably be in trouble." Yue Linglong refused.

"Woman, I can use illusion!" The little fox spoke.

"Alright, I can handle it myself, you don't have to worry." Yue Linglong said.

"Die! Die! The nine-headed black snake said frantically.

The nine snake heads were still not afraid of death, and they rushed towards Yue Linglong, and every time they were burned into ashes by the strange fire.

Each time it was burned to ashes, nine snake heads would grow on the head of the nine-headed black snake again.

"Draw the ground as a prison." Yue Linglong pinched her hands and said coldly.

Suddenly, the nine-headed black snake seemed to be restrained by an invisible force, and its whole body could not move, and a flash of surprise flashed in its eyes.

"Scatter beans into soldiers." Yue Linglong threw out a handful of beans, pinched the trick with both hands, and attacked again.

As soon as those beans landed, they took root and sprouted at a speed visible to the naked eye, and in the blink of an eye, they grew into a large vine, and the vines opened their teeth and claws, like living creatures, and frantically attacked the nine-headed black snake, and in the blink of an eye, the nine-headed black snake was tied to a strong knot.

The nine-headed black snake was trapped, and it writhed its body frantically, trying to break free from Yue Linglong's restraints.

"Click~" A vine breaks.

Yue Linglong didn't expect that this nine-headed black snake would not only be able to break free from her immobilization technique, but also break a vine.

"Click~click~" More and more vines broke apart, and in a few breaths, all those vines broke.

"Hiss~" The human head was raised high, turning into a snake head as big as a basin in the blink of an eye, the snake letter swallowed and spit out, and a pair of eyes stared at Yue Linglong viciously.

Yue Linglong didn't expect the nine-headed black snake to actually turn into its original form, a snake-sized size with nine small snake heads growing on its head, looking very mad.

"Hiss~" The huge snake head was raised high, and the huge snake tail swept fiercely, the target was Yue Linglong, the white shadow flashed, and Yue Linglong disappeared in place.

"Boom~" The snake's tail pounced into the air and slapped the stone wall, the stone wall shattered instantly, and smoke and dust rose everywhere.

"Master, cut off its head, it looks so ugly, and it is also a sin to live in the world!" Trail.

Seeing that the attack failed again, a trace of unwillingness flashed in his eyes, and the giant tail swept and attacked again.

"Boom~" Yue Linglong dodged in time, and the attack of the nine-headed black snake failed again.

"Nan Ke has a dream." Yue Linglong cast her illusion.

In an instant, more than a dozen colorful butterflies appeared in mid-air, and the butterflies danced in mid-air, their wings fluttering, and waves of golden ripples.

The nine-headed black snake was very angry, she opened her huge mouth, and spit out a palm-sized bronze mirror from her mouth, Yue Linglong saw that the bronze mirror was unremarkable, and she didn't pay much attention to it.

The butterfly flew above the nine-headed black snake, Yue Linglong urged the spiritual power again, and the ripples around the butterfly gradually expanded, becoming brighter and brighter.

Suddenly, Yue Linglong felt dizzy, her eyes closed, and she fell to the ground.

"It's not good, master, that's the artifact 'Qiankun Mirror', which will copy all martial arts." Little shouted anxiously.

However, at this time, Yue Linglong couldn't hear anything, she had already fallen into an illusion, and even Yue Linglong herself didn't expect that one day, she would fall into her illusion.

The three little guys in the Linglong space were so anxious that they jumped to their feet, and without Yue Linglong's permission, Xiaoice and White Demon Moon couldn't come out.

The nine-headed black snake's eyes flashed with a vicious color, and he opened his huge mouth to swallow Yue Linglong in one gulp.