These strange birds had a distorted face, a flat beak full of fangs, short and thick wings that could fly flexibly in the air, and at first glance they looked very similar to the strange bird Lu Bang that Lin Su encountered in the Demon Arena. Pen, fun, pavilion www. biquge。 info

In the face of the interception of a group of strange birds, Yilong didn't think about counterattacking at all, he moved left and right a few times and passed directly through the flock of birds, and none of the strange birds that looked very vicious turned around to chase Yilong.

"It turned out to be a pseudo-Lupin." Lin Su finally remembered the name of this strange bird.

The appearance of the pseudo-Lupin looks very similar to the strange bird Lupin, with the only difference being that the claws of the pseudo-Lupin are more slender. Although it looks fierce at first glance, Pseudo-Lupin is actually a very well-behaved bird.

Pseudo-Lupin has a capture level of only 2, and they must scare off predators by mimicking the appearance of the monster bird Lupin.

Lin Su didn't care about these guys who were not a threat, he and the three tigers rolled up a whirlwind through the pseudo-Lubang group.

In just a dozen seconds, the three of them have climbed more than a thousand meters high, and if you look down, you will find that the flying saucer shells that stay on the blades have turned into a small black dot.

"Three Tigers, I remember Jiro, he seems to be afraid of heights, how did that guy get to the Sky Vegetable Garden?" Lin Su expressed his doubts.

"I don't know, go back and ask him." The Three Tigers were also very curious about this.

Yilong, who was running at the front, slowed down slightly, "Don't think about it, it must be Setsuno who climbed up on his back." Although Jienai's talent in cultivation is not as good as the two of you, his strength is also not low. ”

"I remember that Setsuno's ability was to control the air pressure, and it was not too convenient to use it to climb the sky vines." Lin Su also sighed.

Climbing the vines in the sky is subject to two severe tests, one is the ever-decreasing temperature, and the other is the ever-thinning air. The second difficulty can be perfectly circumvented by the ability of the knots, and the effects of low temperatures on them will be much reduced.

The kung fu master who spoke had already come to an altitude of three thousand meters above sea level, and because the altitude was rising rapidly, Lin Su and they clearly felt that the temperature was constantly decreasing.

For every kilometer of altitude gain, the ambient temperature decreases by about 6 degrees Celsius. The sea surface temperature is about 30 degrees Celsius, and now the temperature has dropped to 12 degrees Celsius.

In less than a minute, Lin Su and the others went from the scorching summer to the autumn. If they continue to go up, the surrounding temperature will get lower and lower, and if they really reach an altitude of 20,000 meters, what awaits Lin Su will be a cold hell of minus 80 degrees.

Suddenly experiencing such a huge change in height, ordinary people would have fallen to the ground long ago due to altitude sickness. Even if Lin Su has food cells to strengthen various body functions, some mild discomfort symptoms have begun to affect them.

There was an extremely faint feeling of pain in his head, Lin Su knew that this was a symptom of mountain sickness, and the gradually thinning oxygen had already posed a threat to his body.

"If you can't adapt to this level of environmental change, if you go to the food world, you will definitely be tormented to death by the drastic change in the climate there." Lin Su thought secretly.

Looking at the three tigers who were still rushing forward beside him, Lin Su gritted his teeth and sped up his pace.

When they reached an altitude of about five thousand meters, the ambient temperature had already reached below zero, and both Lin Su and the Three Tigers would exhale a large puff of white gas every time they breathed. Not only that, but the oxygen content in the air is only half that of the ground, and the drastic drop in oxygen content is even more terrifying than the low temperature.

Although the Sky Vine is a staircase to the sky, this staircase is not easy to walk at all. Some of the twisting vines can run on it, while others have to climb with bare hands, and the frequent hand-to-foot changes not only waste time but also consume a lot of physical strength.

Fortunately, they didn't encounter any powerful beasts on this road, otherwise Lin Su's speed would have slowed down.

However, Lin Su was too happy for them too early, how could a place like the Sky Vine not be infested with fierce beasts. The dragon that was running at the front was hit by a giant fist that suddenly stretched out from behind the vine, and was directly knocked out with a bang.

Seeing that the dragon flew away from the range of the sky vines in an instant, Lin Su and the three tigers glanced at each other, and then laughed gloatingly. The two of them knew a lot about Yilong's abilities, and the current situation was not at all dangerous for Yilong.

Just as the two were laughing, the dragon that was knocked away had already flown back by itself. I saw that he condensed a ten-meter-long chopstick, and turned the chopsticks into a propeller by turning his hands rapidly.

"Brother, did you rush too fast and didn't pay attention, and you were actually hit by a sky orangutan." The three tigers laughed and bumped the next dragon on the shoulder.

The sky orangutan is a giant orangutan that lives in groups on tall trees, and it can be tricky to fight them in the trees if you don't find a good foothold. However, this is only a beast with a capture level of only 40, and with the strength of a dragon, it should not be unaware of its existence.

Yilong was not at all embarrassed by the joke of the Three Tigers, and he said, "You take a closer look at the vine I just stepped on." ”

As soon as the words fell, a long cyan snake suddenly peeled off from the vine at the foot of the sky orangutan, and the green snake bit off the head of the sky orangutan.

Not only around the sky orangutans, but also on the nearby vines, there are many similar strange snakes. At first, Lin Su was still wary that the green snakes would attack, but he soon discovered that the tails of the green snakes were growing together with their lurking vines, and the green snakes were actually part of the huge plant.

"It's such an amazing mimicry ability, if it weren't for your reminder, I might not have noticed the danger when I stood on it." Although Lin Su had seen the powerful mimicry abilities of many fierce beasts in the Demon Arena, the plant beast in front of him still brought him a lot of shock.

Plant beasts are one of the food classifications, especially those that have the characteristics of both beasts and plants.

It's like the plant beast in front of it, the huge plant disguised as a sky vine is its body, and those mutated vines like a green snake are its main way of obtaining nutrients.

"Isn't this the evil Beanwood, no wonder you just ignored the sky orangutan, it turned out that you found this thing." The three tigers were stunned.

"Those sky orangutans are supposed to be here for the giant pod on top of the evil Bean Wood." With a finger of his hand, a huge pod more than ten meters long swayed in the air with the wind, and an attractive fragrance came to his face.