The so-called Inner Dan was originally a demon gathering the vitality of heaven and earth, the essence of the sun and the moon, mixing their own demon power, and generating in the body.

Therefore, each inner pill, in addition to containing the demonic energy of the monster itself, is also condensed by the essence of the sun and the moon.

Of course, on the Five Thunder Continent, there are actually very few monsters with Neidan, and because of the different cultivation methods, not every powerful monster has Neidan, and some powerful monsters do not cultivate Neidan, but some monsters that seem to be weak have Neidan, but because of longer cultivation time or other reasons, they have Neidan.

As a traverser, Yi Feng knows that if you want to figure out something, the first thing you need is the "spirit of science"!

Therefore, he took this poisonous toad pill repeatedly and tested it.

Poisonous toad, black gas, he found some small animals, let them come into contact with black gas, and then found that these black gases are really poisonous, but the toxicity is not strong. Animals that come into contact with it often only have a paralyzing sensation in a certain part of the body, and it takes at least half an hour to contact it before it may lead to the danger of death due to the spread of paralysis.

However, if the gas is inhaled directly, it is much more toxic.

Even so, it is not directly fatal, and it takes about a quarter of an hour to smoke before it dies.

However, if you take a basin of water and place the poisonous toad pill into the water, the water will soon be blackened by black gas, and such water, with a trace of fishy smell, even if it is a fierce beast, after forcibly pouring it, it will immediately die.

This stuff is simply better than arsenic...... But it's useless.

Just because, the fishy smell in the water cannot be eliminated, and once it is dyed black, the color is too conspicuous, even ordinary people will not be stupid enough to drink it, not to mention those Jianghu people who know the sinister nature of the rivers and lakes, what kind of fool will be put down by this kind of poisonous water that you know is poisonous at a glance?

It's just that he soon found that after putting the poisonous toad beads into the water, the water level in the water basin slowly decreased a lot, and when the poisonous toad beads were taken out of the water, they obviously became heavier.

It seems that this thing also has the function of "storing water".

He wrapped the poisonous toad bead in a cloth and held it up to the sunlight, and noticed that before the impoundment, although it was also black, it was a translucent kind of black, but now, it was as black as ink, without any light.

He thought to himself, "It seems that it is able to inhale clean water and store it as 'poisonous water'. ”

But it's still useless.

He thought in his heart: "Speaking of which, I remember some of the novels I read in the first life, the 'main temple' in it has many functions, and the magic weapon you get can be immediately identified if you throw it in, and spend some merit or something, so that people can know its usage and value at once." In this comparison, the Tianxin Hall ...... If it can also be regarded as the main divine lightning, it is really weak!"

With the mentality of being the most damaged, he began to inject thunder gas into the poisonous toad bead, and then found that the other thunder qi was obviously repelled from the poisonous water in the bead, but once the water was injected into the thunder qi, the thunder qi could naturally be mixed into the poisonous water in the bead.

At this moment, in the middle of the forest, a leopard with eyes like a lamp, approached him from the side.

His heart moved, and he pointed the poisonous toad bead at the leopard, and with a thunderous urge, the poisonous water in it spilled out, and the leopard couldn't dodge, and was splashed with poisonous water, took two steps, shook it, and fell down, gasping non-stop.

Yi Feng stepped forward to inspect and found that the leopard was paralyzed and convulsed.

He thought in his heart: "Sure enough, the water polluted by the poisonous toad beads, if eaten directly, can be regarded as arsenic-like anesthetic that makes people kill directly, splashed on the body, the poisonous gas penetrates through the skin, and more of a paralyzing limb." ”

Immediately after continuing the experiment, the blade was smeared with poisonous water, and a hole was cut on the leopard's body, and the poison seeped into the blood, and the attack was much faster, but it was obviously not "seeing blood to seal the throat".

Yi Feng doesn't like to use poison, but the rivers and lakes are sinister, with one more skill, he is always prepared, after all, no one knows what he will encounter in the process of walking the rivers and lakes in the future.

Having generally figured out the role that the poisonous toad beads can play, he put the poisonous toad beads away, took out the snake spirit Neidan, and placed it close to the leopard to detoxify it.

At this moment, his heart moved: "Since you can send thunder qi into the poisonous toad bead and urge the water poison inside, can this snake spirit Neidan, which can drive away poison, also be able to do the same?"

Little by little, he tried to send the five elements of thunder into the snake spirit inner dan, and then found that the earth thunder qi was sent into the inner dan, and then urged, the air flow was sent into the leopard's body, just after a while, the orange-yellow air flow was reabsorbed back by the snake spirit inner dan, and the leopard gradually recovered its spirit, and the snake spirit inner dan was a little more turbid, but this turbidity, after half an hour, dissipated, and regained its original crystal clearness.

He was overjoyed.

Thinking back now, at that time, he was stung by the scorpion demon for the tail needle, and the toxin entered his body, all relying on the snake spirit Neidan to slowly drive away the poison, and he didn't think of using thunder to promote its effect, which was really a waste of a lot of recovery time.

Of course, this is also hindsight, in case at that time, he tried to inject thunder qi into the snake spirit Neidan, and then clicked...... Nedan exploded!

Then he's really waiting to die!

It took another half a day to let the leopard that was gradually recovering, to figure out the effectiveness and usage of the poison toad pill and the snake spirit inner pill...... In fact, there is not much left to ponder.

He was almost rested, and then he put them all away and continued to use the dragon footwork to climb the mountains and mountains.

Two days later, he came to a county seat, asked someone to inquire, and then dozens of miles to the north, he arrived at Wanjie City. Look at his body, his clothes are full of dust, the whole person is like a wild man, and he touched his pocket again, although the hundred taels of silver have been used in the trial mission, there are still some broken silver.

So he went to the inn, spent some money, and asked the shopkeeper to help him buy a ready-made, well-fitting coarse clothes, and took a hot bath in the inn by himself.

In the evening, I boarded a restaurant that didn't look very luxurious, and ordered some snacks to comfort myself. It's just that after the wine and food were down, it didn't take long for him to frown, look around, and at some point, he was already surrounded by people.

Immediately afterwards, a man in a brocade robe, with a golden knife, sat opposite him: "I am one of the twelve rudders of the Yan Gang, and the main hammer of the earth pillar rudder is Jun Tao, hehe, little brother, you are Yi Feng, right?"

Yi Feng looked around, the pressure on both sides surged, and he said lightly: "It seems...... I can't talk about it?"