July looked at her ignorant expression, and suddenly felt angry and funny, "The knotted green itself is highly toxic and cannot be eaten. If the giant bird dies, it will die of poisoning. Which do you prefer? ”

After doing it for a long time, it turned out that it was impossible to eat, Ning Yun touched his belly and looked at the cliff regretfully, "Forget it, let's find other food." The forest is so big, there will always be birds. ”

Although the chance of encountering a relatively small living creature is slim, it is better than being poisoned, and the black-robed man said: "Bypass this forest, walk for about a day to reach that lowland, the ancient city is a suitable building area." ”

The surrounding trees gradually increased, and the towering trees obscured the clouds and the sun, and the clouds and mist penetrated the cracks in the forest to make the forest extremely hazy, and the light was also dimmed by the obscurations of the branches and leaves.

Ning Yun walked at the forefront, running happily, occasionally kicking the trunk of a tree, occasionally picking some unknown flowers and plants.

The forest was too quiet, and it was supposed that there should always be some creature walking through it, but the deeper you went, the quieter the forest became.

July lowered his voice, the forest was very dark, afraid of disturbing something, "Do you feel that this forest is gloomy, and you are shivering with a cool air when you walk." ”

When everyone looked closely, they found that the trees were growing strangely, growing in opposite directions from the branches and leaves on the cliff, with thick trunks and dense roots. The green foliage squeezed desperately towards the sky to suck up nutrients.

Ning Yun said: "It's a little cold, ghostly. "With such a big forest, there can't be no living creatures at all, or is the forest itself very evil, and those spiritual animals don't dare to approach it at all?

The black-robed man stroked the bark with great interest, the color of the bark was pitch black and shiny, and it was extremely rough, which showed that the bark was surprisingly thick, and there were marks of different shades on the bark. After checking it for a while, he said, "It's not good, there are living creatures in the forest." ”

His words immediately attracted the attention of the two of them, and they looked at the trunk of the tree beside them, the mark left by the bark resembled the claw marks of a reptile.

July wondered what kind of species it was, "It can climb trees, and it shouldn't be big to see how big it is." "This mark seems to be about the size of a mouse at most, could it be that a creature here reminds of a smaller creature, but what is it?

Ning Yun brought July's scimitar, "I'll try to see how thick the bark is." The sharp scimitar blade struck the trunk of the tree, and not a single debris fell, leaving only a narrow mark on the thick trunk.

July was already a step too late when he tried to stop it, and a drop of dark green liquid oozed from the trunk, "What are you cutting down the tree for, it didn't provoke you." She could hear a faint throbbing sound, like one from the trees beside her.

Soon after the dark green liquid was exposed to the air, green smoke rose up, and the three of them all looked at each other, and the black-robed man said, "Poisonous tree." "It's not like all the species that live here are poisonous.

July explained: "It has something to do with the living environment, maybe the natural living environment under this sky is extremely harsh, and after several years of evolution, both animals and plants will automatically evolve biological protection mechanisms, and toxins are the best way to protect themselves." ”

Even plants have evolved such a high level of protection, and what kind of herbivores are so powerful here that they can threaten the growth of towering trees.

"Is there any danger?" The black-robed man also heard the faint sound of his heartbeat, and judged that there might be something alive hiding inside the trunk, could there be an animal that could penetrate such a thick bark?

"All living things have an instinct for fear of light." Fear of fire is the unchanging nature of creatures since ancient times, July instructed Ning Yun to go to the vicinity to collect some firewood, the light from the top of the big tree is already very weak, it is estimated that it is not far from dark, I am afraid that the three of them are going to spend the night in the forest.

When spending the night in the wilderness, making a fire is the best way to expel other dangerous animals. Ning Yun nodded obediently, and began to pick up combustibles such as branches scattered on the ground around the two of them.

The black-robed man leaned against a large tree, his back pressed against the sound of the non-existent sound, "The fire you make the fire may attract nocturnal creatures, and it is also extremely dangerous. ”

An hour later, Ning Yun collected firewood and arranged it in a fire push style, and the firewood was all the branches and leaves of trees. July carefully checked it, and after confirming that there was no problem, he pulled out a ceramic medicine bottle that he had brought with him, and when he opened it, there was a faint smell of mineral powder, and a layer of white powder was sprinkled on the fire that lined up around him. After a while, the firewood pile gradually ignited a small flame, and the curling green smoke rose up, bringing a pungent fragrance.

Hey, the black-robed man looked at the green smoke coming out of the fire, quickly covered his mouth and nose, and said in a muffled voice: "Will the smoke be poisonous?" He remembered that July was wrong, that the branches and leaves of this tree were highly poisonous, and they burned it no matter how they said it. In particular, the powder contained in the ceramic bottle in July's hand can actually ignite the flames, which can come more quickly than any fire-making tool.

"Similar to agarwood, it has the effect of repelling insects after ignition, and the toxin will dissipate after heating." July's words dispelled the doubts of the extremely suspicious black-robed man.

"Where do you sleep tonight?" He had been in the Sun Tomb for too long, and what he needed was a rest. The black-robed man looked at the tall tree trunk and looked at July.

"Just sleep on the ground." July was roasting around the fire, the twilight was low, and the forest was even more gloomy, and she did not want to hide in the trees. In a way, hiding in trees is a way to avoid ground creatures, but here it seems that the number of terrestrial creatures is pitiful.

The black-robed man said, "Okay, then I'll sleep in the tree tonight, and by the way, pay attention to the surrounding situation, and I can also remind you if there is an emergency." Holding on to the tree with one hand, he left the ground steadily in two breaths, and when he looked at it again, he had appeared on a branch twenty meters above the ground, and kept climbing upward.

"It's a monkey, it's so fast to climb trees." The black-robed man climbed the trees at an astonishing speed, and Ning Yun looked at the figure that climbed into the darkness in disbelief, and cursed, "This monkey should not be so mad." ”

July glanced worriedly at the treetops and found that he hadn't heard Ning Yun's complaint before he was relieved. His strength has never been able to see through himself, but fortunately he is not very proficient in witchcraft. At this time, it is inconvenient to anger him, and it is not good for him to fall out.

Before nightfall, July turned out two more ceramic bottles, sprinkled some powder sporadically around a radius of ten meters, and drew two circles of forbidden circles. I don't know what kind of creatures live here in the forest, so the first layer is arranged with powder to repel Gu, and the second layer is a powder developed by extremely ferocious beast hormones, which can effectively drive away the creatures that intend to attack them.

Seeing that she had completed a series of processes, Ning Yun stepped forward, "Girl, you are the most powerful thing that can scare lions away." But have you ever thought about it, as far as we see now, which one is not bigger than an elephant and thicker than a rhinoceros, and they will be afraid of this kind of creature breath? ”

What Ning Yun said was actually what July was worried about, but the most powerful thing she had at hand at the moment was this biological powder, and she replied blankly: "Maybe, it's useful." ”

The black-robed man hid in a tree, and after hiding it, he didn't make a sound at all. Ning Yun and July were gathered around the fire, relaxing against the trunk of the tree in the light of the fire, and once the hard work of the past few days was relaxed, the tiredness that constantly hit the eyelids washed over their eyelids.

"Girl, why doesn't that monkey make any sound. Climbing on a tree like this, really sleeping, really not falling in the middle of the night? Ning Yun looked at the treetops, and had forgotten which tree he had climbed up from.

Hush! July made a silent movement, and the black-robed man's breathing judged that he had practiced kung fu, and his hearing was not comparable to ordinary people, "Rest, I'm tired enough for a while." ”

In the middle of the night, two even breathing sounds came and went, and both July and Ning Yun were in a deep sleep, and the black-robed man at the top of the branch was half-asleep and half-awake alertly.

In the depths of the dense forest, the wind from the outside world was completely blocked, the firewood pile on the ground was extinguished, and the faint afterglow rose from time to time.

"Puff knock ~ puff knock!" The regular beating sound comes every 20 breaths, and it becomes clear in absolute silence.

July woke up slowly, still listening to the regular beating sound with his eyes closed, as if he were in his ears. Ning Yun was still asleep heartlessly, the sound of breathing nearby was even and steady, and the black-robed man on the branch was too far away for July to judge his condition.

What species of breathing heartbeat will it be? It takes 20 breaths to start a heartbeat, what would be such a low frequency? In general, there is a limit to the number of times an animal's heart beats in a lifetime, and the difference between the upper and lower limits is not very large. Animals with fast heartbeats all have one thing in common: they are fast, tend to be carnivorous animals, and have a shorter lifespan. Conversely, species with slow heart beats tend to move slowly and have a longer lifespan. Turtles, for example, are typical animals with slow heartbeats.

Judging by the laws of biology, July is a little relieved, and it is unlikely that a creature with this kind of heartbeat sound is strongly aggressive.

Well, that's not right. It seemed that there was more than one heartbeat, as if there was a slow low-frequency beating nearby, and the rhythm of their beating was surprisingly consistent, so that I couldn't judge it for a while. "Are there a lot of them?"

When any species reaches an alarming number, even if it is not very aggressive, the terrifying population size is a great threat.

July suddenly opened his eyes, and got up slowly, Ning Yun was still asleep on his side, and there was still no movement above the treetops.

The visibility in the bushes was extremely low, and she didn't feel that it disturbed Ning Yun, and there was a faint heartbeat in all directions, and it was difficult to tell where it came from for a while.