"Didn't that Du Kang say that the Thunder Demon Bee can't devour anything? Then try it and see if the Thunder Demon Bee can swallow the black mist in his body. Lin San thought about it again, and his expression was a little hesitant: "The black mist in his body is extremely poisonous, will it be dangerous if the Thunder Demon Bee devours it?" After pondering for a while, Lin San still decided to take a risk, and used his divine sense to give an order to the two Thunder Demon Bees: "To my stomach!"

Without a trace of hesitation, the two Thunder Demon Bees flew directly into Lin San's mouth, and then followed their throats to Lin San's stomach.

Lin San closed his eyes and used his divine sense to command the two Thunder Demon Bees to devour the black mist that surrounded the dantian.

"Buzz...... The two Thunder Demon Bees quickly pounced on the black mist and began to bite and devour.

After about a stick of incense, the two Thunder Demon Bees were still normal, and they didn't show a trace of poisoning.

Lin San's face was overjoyed: "The Thunder Demon Bee is really not afraid of the black mist. With a flick of his wrist, he threw dozens of Thunder Demon Bees into his stomach.

Under the desperate devouring of dozens of Thunder Demon Bees, the black mist surrounding the dantian became smaller and smaller, and finally all disappeared.

As soon as Lin San's consciousness moved, dozens of Thunder Demon Bees flew out of Lin San's mouth, and as soon as the black mist was gone, the pain in the dantian disappeared, and after Lin San put away dozens of Thunder Demon Bees, he began to meditate cross-legged.

Five days have passed.

After five days of meditation and the help of a large number of elixirs, Lin San's injuries finally improved by seven or eight points.

"Woo ......" Lin San exhaled a long breath, he was really lucky this time, if it weren't for the tired demon bee, he would definitely die of poison.

Since the injury is almost healed, then Lin San has time to observe the situation of the cave, since he found out that the cave has artificially dug stone steps, Lin San has doubts in his heart, who will open a cave at the bottom of the river, and what is the purpose?

After Lin San released the defensive light shield, he threw out the night pearl to illuminate, and then raised his feet and walked down the stone steps to the depths of the cave, this cave is inclined upward, the stone steps seem to be endless, Lin San walked for several hours, and he didn't even see the end.

After walking for more than an hour, a boxy stone room finally appeared in front, the stone room has no door, the area is not very large, the furnishings in the stone room are also very simple, there is only a stone table and a few stone chairs, there is nothing else, the ground is paved with flat bluestone, probably the reason why no one has been here for a long time, the stone room is hung with wire mesh and dust.

Lin San used his divine sense to scan the stone room back and forth several times, and after confirming that there was no danger, Lin San slowly walked into the stone room.

Under the illumination of the night pearl, Lin San inspected the stone room, and found nothing suspicious, just as Lin San was about to leave, the corner of his eye suddenly swept to a raised stone on the left stone wall, the stone was round, and the surface was very smooth.

"Is it a mechanism?" Lin San walked to the stone wall on a whim, stretched out his hand and grabbed the raised stone, turned it hard, but there was no response, pressed it hard, still didn't react, pulled it hard, and the stone finally moved.

"Click...... Click...... "The stone wall suddenly cracked, revealing a boxy box, this box was snow-white, with a slight cold, at a glance, you knew that it was not a mortal thing, the most strange thing was that this white box could even rebound the divine sense, no wonder Lin San did not find the existence of the white box when he scanned the stone room with his divine sense just now.

Lin San stretched out his hand and took the white box in his hand, the weight of the box was very light, it was very round and smooth in his hand, Lin San checked it for a while, and he didn't see what material the white box was made of, anyway, it was not jade, nor iron, nor ice.

There is a shallow white mark around the white box, which should be openable.

Lin San tried several methods, but he couldn't open the white box, and in the end, he couldn't do it, so he released hundreds of Thunder Demon Bees, and at the sound of an order, hundreds of Tired Demon Bees rushed to the white box and began to bite it in big gulps.

The Tired Demon Bee is worthy of being a famous ferocious insect in ancient times, and its devouring ability is really extraordinary, and in a few moments, it will swallow up the white box.

"Alright, disperse!" Lin San used his divine sense to drive away the tired demon bees, and then took out a piece of jade note from the crack in the white box, Lin San pasted the jade note on his forehead, and a large piece of text poured into Lin San's mind.

A full hour passed.

Lin Sancai took the jade note away from his forehead, looked at his expression, and seemed to be very excited: "It's actually a ** suitable for the cultivation of the Five Elements Spirit Root." "There is a wonderful ** recorded on the jade note, called 'Five Elements Decision', the Five Elements are divided into five parts, namely: Gold Decision, Wood Decision, Water Decision, Fire Decision, Earth Decision, Cultivation Success Meeting, you can arbitrarily control the five elements of gold, wood, water, fire, and earth between heaven and earth.

The requirements for cultivating the Five Elements are very harsh, first of all, you must have the Five Elements Spiritual Root, then you must cultivate to reach the Yuan Infant Stage, and finally you need strong perseverance, these three conditions may be a little difficult for others to talk about, but it is indeed very easy for Lin San, Lin San himself is the Five Elements Spiritual Root, and now he has reached the Yuan Infant Stage, as for perseverance, let alone it, all in all, Lin San is too suitable for cultivating the Five Elements Formula.

Lin San gently stroked the jade note, and said to himself: "I just finished cultivating the Mixed Yuan Wuji Gong, and I was about to look for a new **, but I didn't expect to let me get a Five Elements Formula, God really help me!" Lin San carefully checked the content of the jade note, and did not record the origin of the Five Elements Formula**, but Lin San guessed that he could create such a subtle ** Fa is definitely not an ordinary person, speaking of which, Lin San really has to thank the Thousand-Handed Ghost King and others for chasing and killing him, otherwise Lin San would not have been able to break into this cave by mistake, and then find this 'Five Elements Technique'**, it seems that this is the so-called chance.

"Click!" suddenly there was a soft sound in the stone chamber.

Lin San looked up and was stunned, the hundreds of Thunder Demon Bees that had just been released were devouring the stone table and stone bed in the stone room, as for the white box that had just contained the Five Elements Formula, it was estimated that it had been devoured by the Thunder Demon Bee.

"These Thunder Demon Bees are really inexhaustible. Lin San smiled bitterly, stretched out his hand and put hundreds of Thunder Demon Bees back into the spirit insect bag, and then carefully searched the stone room, and after confirming that there were no other treasures, Lin San raised his feet and walked out of the stone room, this stone room seemed to be the end of the cave, there was no road ahead, no way, Lin San could only return the same way, a few hours later, Lin San returned to the place where he first healed, released the defensive light shield, and plunged into the river.