This scene made Tang Yun laugh immediately, he had only seen this scene in cartoons, and he really didn't think that he could see it in reality.

Seeing that the big lizard was stuck there and couldn't move, Tang Yun was not in a hurry, turned around and slid to the big lizard, opened his mouth towards it, and flashed his sharp fangs.

Seeing Tang Yun in front of him, the big lizard immediately opened its mouth and bit him a few times, but Tang Yun was not a fool, so naturally it was impossible to send himself into its mouth, and the position was naturally out of the reach of the big lizard, no matter how hard the big lizard tried, it just couldn't bite.

The big lizard snapped at Tang Yun for a while, and finally realized that he was stuck in this narrow stone cave, and there was nothing he could do about the long worm in front of him, so he began to kick back with all four feet, wanting to retreat.

Tang Yun also found that the big lizard wanted to escape, so he immediately sprayed a few poisons at it, but unfortunately, the big lizard was very cautious, and as soon as he saw the venom spraying over, he immediately closed his nostrils and mouth, so that Tang Yun's several attacks were in vain.

Seeing that the big lizard looked like it didn't go in, Tang Yun also felt a little helpless, so he could only watch it retreat.

When the big lizard retreated into the cave, Tang Yun unexpectedly found that there was an extra wound on the big lizard's back that was more than a foot long, and dark red blood was constantly flowing out of the wound.

"Huh?"

Finding that the big lizard was injured, Tang Yun immediately came to his senses, although the skin defense of the big lizard was very high, and it could be immune to his venom attack, but he didn't believe it, and directly injected the toxin into the wound, and the big insect couldn't kill the poison.

Thinking so in his heart, Tang Yun did not hesitate, and chased after him with a twist of his body.

The big lizard also felt that Tang Yun was chasing after it, only to see it hiss twice towards Tang Yun, and then ran towards the depths of the cave without looking back.

Watching the big lizard flee all the way to the depths of the cave, Tang Yun spit out the snake letter, sensing the smell emanating from the big lizard's body, and his heart was not in a hurry, anyway, as long as it was still in this cave, the sensitive smell sensing cells on his snake letter could always find it along the breath it left.

Following unhurriedly all the way, Tang Yun even had the leisure to look around at the strange scenery in this huge cave, although the scenery seen in the thermal sensing vision was very strange, but he was already used to being a snake, and it was still easy for him to transform the thermal sensing scene into the most familiar visual effect in his brain.

This cave is quite wide, the height is even more than two meters, even if humans come in the cave, they can walk upright, judging from the stalagmites on the ground and the stalactites on the head, this should be a more typical limestone cave, and the time of existence will definitely not be short, and I don't know whether it takes thousands of years or tens of thousands of years to accumulate to raise such a large stalactite and stalagmites.

Tang Yun was a little absent-minded along the way, but his speed did not slow down because of this, and it didn't take too long to reach the bottom of the cave.

There was a large stone hall, the ground of the stone hall was littered with rubble, and in the middle of the stone hall there was a small pool, and the murky water was gushing out of the pool.

Tang Yun only stayed in this stone hall for a few minutes, and then he found that the water level of the pool had risen a little, and if it continued like this, this stone hall would probably be flooded soon.

The big lizard that had attacked him was rummaging through the rubble in the stone hall on all fours.

Finding the trail of the big lizard, Tang Yun immediately leaned towards it, and when he got closer, he found that the big lizard had dug out a strange crystal the size of a baby's fist from the pile of debris. The crystal is translucent, flashing with a faint light blue light, at first glance, it has a mysterious and noble feeling, and at a glance, you can know that it is a treasure.

The big lizard rummaged through the blue crystal, hissed happily, and swallowed the crystal in one gulp.

The next scene that stunned Tang Xiaoyu happened.

After eating the strange blue crystal, the huge wound on the back of the big lizard actually began to heal at a speed that was visible to the naked eye, and the wound that was originally deep in the bones and almost exposed to the internal organs was only a few breaths, and it was retracted, leaving only the outermost scar that was not too deep and could not be healed.

Sensing that the wound on his body had not yet healed completely, the big lizard waved its two sharp and strong front paws again, rummaging through the pile of rocks, and it didn't take much effort to find a blue crystal again.

But this time, Tang Yun didn't give it any chance, and his body suddenly burst out, like a black lightning, and before the big lizard could react, he bit down on the wound on its back, and the deadly venom was injected into its blood along the fangs.

With a successful blow, Tang Yun's body flicked, and then he moved away from the big lizard at a faster speed. Now that he is experienced in hunting, he knows very well that a creature like a lizard, even if it is dead, can still attack others, and he doesn't want to die inexplicably.

Sure enough, after the big lizard was bitten, the conditioned reflex was general, and he turned around and took a bite, fortunately Tang Yun retreated quickly, otherwise he would have to bite him this time, and at that time, he would probably have to shed his skin if he didn't die.

Fortunately, the big lizard's fight back was also its last struggle, Tang Yun's venom now was not a joke, let alone this big lizard, even the even larger mammoth couldn't withstand his poison. In the blink of an eye, the big lizard was convulsed and completely dead.

After waiting for a while, he found that the lizard was really dead, so Tang Yun cautiously slid over, grabbed the strange crystal and retreated to the outside of the stone hall.

Tang Yun spit out the blue crystal, looked left and right, and found that this crystal looked very much like a crystal stone on the earth from the outside, but the inside was a blue one, flickering with a faint fluorescence, giving people the feeling that it was like the radioactive energy body in a science fiction movie.

"This thing can't really be a radioactive element, right? But it's not right, if it's a radioactive element, what the hell is the big lizard that after eating it, its injuries will heal instantly?"

Looking at this crystal, Tang Yun was a little confused, hesitated for a while, and finally made a difficult decision, that is, like the big lizard, eat this crystal and see what would happen.

Thinking of it was Tang Yun's merit, and since he had made a decision, he didn't hesitate any longer, and swallowed the crystal in one bite.

With a "grunt", the huge crystal was swallowed into the abdomen, and the feeling was no different from swallowing a stone, it was so hard.

But soon, Tang Yun discovered the abnormality, and a scorching energy burst out violently from his stomach, with the stomach as the core, flowing towards his internal organs and limbs.

"Hiss......"

The impact of this energy was very violent, and Tang Yun, who was unprepared, only felt a sharp pain all over his body, and a miserable hiss sounded from his mouth, and even his head was a little dazed under the stimulation of the severe pain.

Fortunately, Tang Yun was a strong-willed person after all, and he quickly recovered from the severe pain in his body, and he was busy running his true qi to suppress this chaotic energy.

Just when his true qi was running, something surprising happened to him, and that scorching energy was quickly integrated into his true qi, making his true qi continue to grow. It's just that he controls the True Qi to run around in the body, and the amount of True Qi has more than doubled out of thin air.

This change made Tang Yun a little dumbfounded, and it took a while to come back to his senses, and then a thought popped up in his head: "It's developed, that blue crystal is definitely an incredible treasure." ”

With distracting thoughts in his heart, his control over the true qi immediately relaxed, and the uncontrolled true qi sneaked back into the dantian, leaving only a small amount of true qi flowing back and forth in the heart, spleen, and lungs.

Without the protection and suppression of his true qi, the scorching power began to exert its power again, wantonly sweeping through his body except for his heart, spleen, and lungs, making him taste severe pain again.

The sharp pain that struck again made Tang Yun immediately suppress the excitement in his heart, and he hurriedly controlled his true qi to continuously absorb the scorching energy in his body, and it was not until a quarter of an hour later that he finally completely absorbed that energy.

Obtaining the energy of a blue crystal, Tang Yun found that the true qi in his body had grown several times, and even the dantian had a feeling of swelling, like a balloon that had been inflated too much and could explode at any time.

The feeling that the dantian was about to be burst made Tang Yun's heart skip a beat, and he hurriedly controlled the true qi towards the kidneys, but he wanted to take the opportunity of the abundant true qi now to condense the tricks of the kidneys, and by the way, he could consume part of the too large true qi, otherwise his dantian would really be blown up, and that would be a big joke.

Such a huge amount of true qi, if in the past, Tang Yun could not have refined the qi and blood for ten days and half a month, but now he has made a windfall, and with the power of this true qi, he actually condensed the three points on the kidneys in one breath, and then stopped.

Sensing the dantian where the pressure had dropped sharply, and then sensing the kidneys that had already condensed one hundred and three acupoints, Tang Yun's mood suddenly improved.

Judging from the fact that the big lizard found two blue crystals after a few casual rummags just now, there should be a lot of blue crystals in the stone hall, and if the big lizard can find it, he will definitely be able to find it.

Thinking so in his heart, Tang Yun immediately reflexively returned to the stone hall, but the scene in front of him made him feel the urge to scold his mother - the water in the small pool had already submerged most of the stone hall, and it was still rising, submerging the entire stone hall, and it didn't seem to take too long.