Nan Jiantian floated to the shore along the current, and at this moment, his body was covered with mist, and the water vapor was steaming, enveloping his whole person, like a fairyland on earth.

"This seems to be a grotto located underground?" Nan Jiantian looked at the countless and varied stalactites on the top of the cave in amazement, and with the subtle light, he barely got up, pulling the wound on his shoulder, he couldn't help but snort, his face turned pale.

Fortunately, the wound to the shoulder is not fatal, as long as he is given enough time to heal, but fortunately, it is hidden enough that the enemy will not be able to find it in a short time.

At this time, Nan Jiantian entered a mysterious ancient cave, and there was a faint flash of blood in the cave, and a heavy bloody breath was ushered in, which was disgusting.

In addition, there is a heavy pile of animal feces on the ground, and I don't know how many years it has been deposited, and the air here is a little stagnant.

"Seems to be living some creatures here?"

Nan Jiantian looked up at the top of the wall, only to see that there were countless blood bats hanging densely on it, because it was now in the winter hibernation, most of the blood bats had fallen into a deep sleep, only a few were awakened, and at this moment they were staring at the intruder in front of them with their vicious canine teeth open.

"It seems that this is a habitat for blood bats, and it has given birth to such a large number of blood bats, but why is there such a strong bloody aura, could it be that there are even more powerful creatures hidden here?" Thinking of this, Nan Jiantian couldn't help but secretly be more careful.

He looked around, and with a trace of blood, he saw that everywhere in the ancient cave was there white bones, countless human bones, animal bones, and some unnamed bones......

Some of the bones are like jade, exuding a shining light, although after a long time, they can still remain incorruptible, which shows that the cultivation of some humans and beasts who died here is not low.

Seeing this, he was almost certain that there should be a powerful evil spirit here, and perhaps it was spying on itself now.

Nan Jiantian looked at the blood mist in front of him, could it be that there was something hidden in it? He felt that there was a predestined power waiting for him to go and open it, and at that moment he urged his pace and decided to take a closer look.

"There's something else here, and this culvert isn't small!"

Nan Jiantian stopped, and what appeared in front of him was a blood pool with a radius of ten zhang, the blood in the pool was tumbling endlessly, and the blood mist was steaming in the sky, exuding a thick bloody aura that suppressed suffocation.

"With such a large pool of blood, how many humans and beasts do you need to kill to gather?" Nan Jiantian was shocked on the spot.

Just as he approached the range of the blood pool, a murderous aura enveloped him, and vaguely he saw a huge blood shadow flash away, and the fierce spirit grew huge wings, but they did not look like wings.

The shadow of the blood spirit appeared around the culvert, and it seemed to be floating in a pool of blood, which was unpredictable.

"Could it be that it is a blood bat that has become a sperm? After all, it still woke it up, and it seems that a bloody battle is inevitable!" Nan Jiantian smiled bitterly, and pulled out the Huolin Sword and was on guard.

As if summoned, the countless blood bats that had fallen into hibernation all woke up at this moment, without a trace of fatigue, and a jealous gaze flashed in their bloody eyes staring at the intruder in front of them.

Finally, the first blood bat let out a piercing scream and turned into a bloody ray that rushed towards the Southern Sword Heaven in the Nether Realm.

Then, the second, the third...... Tens of millions......

The entire culvert that had been silent for a long time seemed to be boiling, and countless blood bats rose into the air and converged into a large blood cloud covering the culvert, tumbling endlessly, quite spectacular.

Nan Jian Tian's fire lin sword danced in his palm, and without hesitation, he burned hundreds of blood bats that rushed across with Qilin flames.

But the Endless Blood Bat was not afraid of death, and turned into several blood-colored rivers and slammed down on him.

He didn't seem to want to waste his strength on these fierce spirits who had not yet opened his mind, and directly used the Fire Lin Sword to weave a curtain of fire, like an insurmountable heavenly sting, blocking the blood bat's desperate attack.

Bang, bang, bang!

Countless blood bats were either incinerated by the flowing Qilin flames on the fire curtain or were shocked to death, falling to the ground like raindrops.

After careful inspection, he found that the body of the blood bat was broken by a strange law contained in the power of the law contained here at the moment it fell to the ground, and a series of 'blood troughs' appeared on the ground, dense and interconnected, and countless blood bat remains melted into endless blood water and converged along the blood trough, turning into a tumbling 'blood river' that continued to converge towards a huge pool of blood.

As all this progressed, the water level of the blood pool actually rose at a speed visible to the naked eye, and the blood mist above the blood pool was steaming.

"There's really something strange here!" Nan Jiantian's back almost turned into a substantial angel wing, and under the strong encouragement, his whole person rose from the ground, just in case of an accident, he still left the stone face engraved with countless formations, in case he was plotted by the fierce spirit.

"There are actually words in the blood pool?" At this moment, Nan Jiantian was suspended in mid-air and was able to see the whole picture of the blood pool, and everything on the surface of the blood pool naturally fell into his eyes. Qiandu Chinese Network

The fonts in the pool of blood unfolded magnificently, with the undulations of the water surface, and when he saw the whole picture of these handwritings, his heart unconsciously lifted up, and it was difficult to hide the joy in his heart.

"It's the Book of Heaven, it's actually the second volume of the Book of Heaven's exercises, it's really nowhere to find the iron shoes, and it takes no effort to get it, I didn't expect to see the Heavenly Book exercises here today!"

He still remembered that he had accidentally seen a wordless Heavenly Book during the confinement of the Heavenly Academy, which was the first volume of the Heavenly Book, and it was precisely because of this that he was taken on the path of cultivation, and now that more than a year has passed since the long road, he did not expect that he would find the second Heavenly Book so quickly.

Originally, he didn't want to stay too long here, but now he has to fight even if he risks his life!

At this moment, the surface of the originally calm blood pool suddenly became boiling, and countless huge blood bubbles exploded and splashed blood flowers, and then a blood wave rose flatly, it was a fierce spirit that resembled a kite, from the forelimbs, hind limbs, and all the way to the tail were covered with a strong red blood film, like paste paper on a kite stand.

"Sure enough, there is a Blood Bat King, whose breath is so powerful, it is close to the appearance of the late stage of the Jiedan!" Seeing that the Blood Bat King swept towards him with a shocking blood wave, Nan Jiantian's body appeared ten zhang away by mistake, avoiding the attack of the blood spirit.

The wingspan of the Blood Bat King's three-zhang wide wingspan was like two wide demon blades, and the blood qi was slashing towards him, although the blood spirit was huge, it was quite agile, and its body did not become a burden to it, but became a great killing weapon for it to strangle the enemy!

The sword in Nan Jian Tian's palm danced rapidly, and dozens of fiery sword rays shrouded the Blood Bat King, and the rain of sword qi bombarded its magic body.

Although the wings of the blood spirit seemed to be extremely weak, they had an amazing tenacity, and even the Fire Lin Sword could not break through it, Nan Jiantian saw that when the sword qi touched the blood wings of the Blood Bat King, it was bounced away by an indescribable force, and the sword qi refracted and slashed back on the rock wall.

Thundered!

The fierce confrontation between the two caused the interior of the culvert to collapse, and in an instant, thousands of blood bats were smashed into bloody mud, and then turned into a steady stream of blood power and merged into the pool of blood.

After a fierce battle, the several fire curtains set up by Nan Jiantian had already been broken through by the Blood Bat King, and the blood spirit firmly gained the upper hand in a short period of time, but it seemed to be worried that the blood pool would be damaged because of this, and it would become constrained, so the pressure on Nan Jiantian was suddenly reduced a lot.

Nan Jiantian cast nine steps of the dragon, and a blur of his body appeared on the back of the blood spirit, and he stabbed down on the back of its head with his sword.

At this moment, the endless blood seemed to come back to life, and several bloody hands extended out of the blood pool, like blood snakes entangled, tightly entangled around the sword body, blocking the stabbing momentum of the Huolin Sword.

He only felt a tightness around his waist and ankles, and he was actually entangled by the blood snake, tearing him off the back of the blood spirit.

"Damn!" Nan Jiantian couldn't help but be furious when he lost an excellent opportunity to kill the Blood Bat King, and his sword swung to weave a curtain of red fire.

'Shh

The blazing heat evaporated all the blood snakes.

On the other side of the culvert, the Blood Bat King instigated his wings to levitate out of thin air, his vicious eyes staring at the human in front of him, and the blood mist churned under its blood wings, and a curtain of blood shrouded him.

Seeing this, Nan Jiantian's face showed a solemn expression, and he opened his hand and raised an eight-sided exquisite pagoda and shot out, and the place where he passed caused the Heaven and Earth Yuan Force to reverberate, which was the Nine Heavens Reincarnation.

The pagoda instantly skyrocketed a hundredfold, turning into a giant tower about ten zhang high, breaking the blood curtain that shrouded it, and its momentum did not change to the Blood Bat King to suppress it.

'Squeak squeak!'

The Blood Bat King felt a huge threat, and let out a sharp chirp, hearing this sound, Nan Jiantian only felt that something was slashing across his divine soul, and his divine sense was stinging.

Under the influence of this wave of sound, countless beating blood flowers splashed on the surface of the entire blood pool, like strange musical notes, and the ancient characters of the Book of Heaven were also broken.

Fortunately, this phenomenon only lasted for a few breaths, and soon the blood pool was calm again, and the ancient characters on the surface of the blood pool miraculously appeared again.

"Could it be a reflection?" Nan Jiantian looked at the top of the culvert, and saw that there were dense inscription traces on the top of the wall, these runes were not engraved by manpower, but seemed to be sealed here with a powerful method, and it was still as good as ever after thousands of years!

The person who sealed the Book of Heaven here seemed to be afraid that this exercise would fall into the hands of others, so he put these obscure and difficult words upside down on the stone wall, even if someone practiced according to the above exercises, they would go mad and die, and their muscles and veins would die in chaos;

At this time, the Nine Heavens Reincarnation also suppressed the Blood Bat King, and the pagoda released endless coercion to detain the blood spirit in the local area, although it could not be suppressed in a short time, but it could no longer attack Nan Jiantian.

By now, strangling the Blood Bat King was no longer the first goal, his first task now was to cultivate into the second volume of the Book of Heaven and complete the transformation of the two-winged angel from virtual to real.

Now all forces are still searching for his traces in the outside world, and only by improving their strength as soon as possible can they hope to break through the enemy's blockade and make a comeback.