As soon as he stepped into the cave, Li Aotian saw the scene in the cave.

This cave was bigger than the second cave Li Aotian had encountered before, and it was nearly twice as big.

Although large enough, the cave was extremely empty, and there was nothing in the entire cave except for an old silver tree, and there was no entrance to the next passage.

The only old silver tree in the cave, rooted in the very center of the cave, its thickest trunk is the thickness of a bucket, and its height reaches nearly three feet, and its branches and foliage are dense, and it looks full of vitality.

In appearance, the old tree resembles a pine tree, except that its roots, trunk, branches, and pine needles are all bright silver, and they also shimmer with a dazzling silver aura.

The reason why there is light in the cave is all because of the old silver tree, which illuminates the entire cave as if it were day.

"This is the Silver Needle Sword Pine!Not good!!"

After carefully looking at the silver old tree a few times, Li Aotian quickly found the information of the silver old tree in the memory of his previous life, and at the same time he secretly screamed that it was not good, turned around and retreated towards the entrance behind him, wanting to return the same way.

However, what Li Aotian didn't expect was that as soon as he turned around, the entrance behind him actually disappeared under a flash of blue light, and the original exit turned into a stone wall.

"Ahh

Seeing that the retreat was gone, Li Aotian raised the giant sword in his hand and slashed at the stone wall in front of him, but just like the previous attempt, as soon as his sword touched the stone wall, it was bounced off by an invisible force.

"Whoosh !!"

The sound of breaking the sky suddenly sounded from behind Li Aotian, but it was the silver old tree that shook violently, bursting out a large number of silver leaves, and shooting towards Li Aotian overwhelmingly.

The leaves of this old silver tree are as long as needles, not only are there many but each one is very sharp.

Seeing a large number of needles flying towards him, Li Aotian hurriedly put the giant sword in his hand in front of him, trying to block the attack of these silver needles with the sword body.

With a crackling sound of fine iron, the giant in front of Li Aotian was shot by a large number of silver pine needles, although it helped Li Aotian block the attack, but a large number of small potholes appeared on the surface of the sword body, all of which were shot out by silver pine needles.

After the silver pine needles were blocked by the giant sword, they first fell to the ground, and then dissipated automatically, looking like an illusory thing.

Although a large number of silver pine needles disappeared after being blocked, even so, there were still pine needles shooting out from the silver old tree, like a small flying sword, frantically attacking the giant in front of Li Aotian.

After withstanding the attack of I don't know how many pine needles in a row, the aura of the giant sword was greatly lost, and the potholes on the surface became more and more dense, just like the hornet's nest, which was very ugly.

Fortunately, the carcass of the Juque Sword is thick enough, otherwise it would have been completely destroyed by the thousands of holes that were shot.

"No, if you continue to let this silver needle sword pine attack, the giant sword will be abolished, and if the sword is abolished, the spirit in it will be terrible!"

Looking at the giant sword, Li Aotian's face was gloomy to the extreme, he gritted his teeth, put the giant sword into the storage bag, and used his body to resist the attack of the silver pine needles.

Under the attack of a large number of silver pine needles, the surface of Li Aotian's body was also flooded with a crisp sound of fine iron strikes, and the golden aura on his body flowed, temporarily helping him block the attacks of many silver pine needles.

"Thunder Yuanguang!"

After temporarily blocking the attack of the silver pine needles with the help of his physical strength, Li Aotian's hands intertwined with blue thunder arcs, and then quickly converged into a blue thunderball, blasting towards the roots of the silver old tree not far away.

The blue thunderball exuded a powerful thunder attribute aura, and even if it encountered a lot of silver pine needle attacks on the way, it was easily shocked into powder.

However, in an instant, the thunderball transformed by the Thunder Yuan Light hit the root of the silver old tree, and exploded with a "boom".

As soon as the blue thunderball exploded, it turned into a violent wave of thunder-attribute true vitality and spread out in all directions.

However, what Li Aotian didn't expect was that his fatal blow had not caused the slightest damage to the silver old tree, and the old tree was still attacking him.

"How can this be! The weakness of the Silver Needle Sword Pine is obviously at the root of the tree, but it took a thunderbolt from me, and it was unscathed!"

Looking at the unscathed silver old tree, Li Aotian's face was full of disbelief.

Silver needle sword pine, this is an extremely special tree, this kind of tree is not naturally grown, but made of thousand-year-old sword pine trees, combined with a special cultivation formation.

In the cultivation world, anyone who has an understanding of the silver needle sword pine knows that cultivating this kind of tree is generally used to arrange formations.

Different from the formation arranged with ordinary arrays, there are two major advantages to using silver needles and swords to loosen the formation.

One is that as long as the tree does not die, the formation will not be broken, that is to say, as long as the silver needle sword pine tree is always alive, the formation will always be there, and it will remain ready to be activated at any time.

The second is that the tree of the silver needle sword pine can automatically absorb the vitality of heaven and earth, and can store it and convert it into the purpose of stimulating the formation, like the general formation, it needs to use the yuan crystal to provide energy to operate, but the formation arranged with the silver needle sword pine does not need it.

"This place is really weird, first there was a rare plant like the Vampouring Vine, and now even the rarer Silver Needle Sword Pine has come out, and it is so powerful and indestructible, what does the Lord of this place want to do!"

While continuing to resist the attack of the silver pine needles with his physical body, Li Aotian speculated in his heart about the intentions of the lord of this place.

Li Aotian can be sure that the lord of this place has no killing intent to outsiders, to be precise, there should be no killing intent, otherwise with the ability of the other party, he can completely kill the cultivators under Yuan Dan with one blow.

But whether it was the previous corpse refining and vampouring vine, or the attack formation arranged with the silver needle sword pine in front of him, its danger was not small, this was Li Aotian, if he was an ordinary Divine Wheel Realm cultivator, he might have died a long time ago.

I was wondering in my heart, and suddenly, the pine needle attack issued by the Silver Needle Sword Pine suddenly doubled in strength, and the unprepared Li Aotian was directly rushed out, slamming into the stone wall behind him.

"Damn it!"

Looking at the many tiny pinhole-like wounds on his chest, Li Aotian's body True Yuan was running at full strength, and a three-foot-thick wall of golden True Yuan was condensed in front of him.

With the previous attack strength of the silver pine needles, Li Aotian could barely resist with the strength of his physical body, but as the attack power of the silver needles skyrocketed, he had to defend with the power of the true yuan.

After the wall of true yuan in front of him was condensed and formed, it immediately helped Li Aotian block the attack of a large number of silver pine needles, but the true yuan in Li Aotian's body was also extremely depleted