Tang Xiao quickly crawled towards the depths of the tunnel, and at the same time, he always checked his two major skills as insect forms from the system interface-

Anterior chelica strengthens and mixes fangs.

"There is only one level of pre-chela strengthening, and if you upgrade to level two, you need 100 evolution points......"

"Mixed fangs have reached level 2, but if you level up further, you need 500 evolution points, and if you want to reach level 4, you need 1000 evolution points!"

Tang Xiao was secretly frightened, he thought that he now had 1200 evolution points, which was already a small asset, but he didn't expect that it would barely be enough to upgrade these two skills, and he couldn't upgrade them to too high.

"Although the front chela is an insect skill, it feels a bit wasteful, but there is no way to do it now, so I can only hope that it can be retained when the bloodline is fused in the future."

Tang Xiao sighed in his heart and made a quick decision-

It cost 300 evolution points to evolve the previous chela skill by two levels in a row.

"Front claw, level three, increases bone strength to the extreme for a short time, increases strength by 20, hardness by 20, and obtains derivative skills: smash, cooldown: 30 minutes."

With the sound of the system prompt, a few minutes later, Tang Xiao's front chela doubled in size again, and at the link with the shoulder, an extra layer of armor muscles was derived, which could not only play a protective role, but also facilitate him to better control the front chela.

What Tang Xiao really likes is the smashing skills derived after being promoted to the third level-

"Smash, slam the enemy with a hard front claw, dealing damage equal to 150% of normal attack damage and inflicting a stun. (Stun factor: 0-2s, depending on the opponent's size and resistance.) ）”

The power of the control skill is a necessary weapon for turning the tables, although his size is small, and it is estimated that there is no half-point effect in the face of the young leopard, but against the red feather bird whose size is not twice as big as his current self, it is estimated that it can have at least half a second.

A crisp cry came from the corridor not far behind him, presumably the strange bird had broken through the barrier of secretions.

This secretion, which had trapped Tang Xiao for more than half a day, was unexpectedly fast and did not give Tang Xiao any chance to get lucky.

But just as she was able to fall from the sky and avoid the giant crocodile in the deep pool, Tang Xiao was already used to this kind of surprise, he did not stop at all, and continued to follow his plan:

"Upgrade, mix fangs."

The 500 evolution points were drawn in an instant, and the switchable gap for injecting venom that Tang Xiao had chelated in front of him changed again, not only the spiked catheter used for venom injection became a foldable and ejectable structure, becoming longer.

And behind the venom-secreting tubular venom glands, a small layer of muscle is also grown.

"Mixed fangs: Level 2, mixed fangs that mix spider toxins and snake toxins, are again more toxic and corrosive. The venom gland structure is reorganized into a three-compartment type, with additional propulsive contractile muscles to enhance the venom range.

(In snake form, the front tooth holes are automatically opened, and the spray range is increased again.) ）”

What do you mean?

The three-chamber type is to grow a similar three controllable gates in the venom glands, and when the venom is injected/sprayed, you can choose the amount of one block or three blocks.

If it is an injection or a very short-distance injection like the original, because the pressure is small, the speed of the flow from the poison gland through the catheter is slow, and it can be controlled freely, and this function is dispensable.

However, thanks to the addition of the propulsion contractile muscle (similar to the PC muscle of the human body), the venom gland has completely changed to a needle tube structure, and the distance of the spray has greatly increased to about one meter.

This squirting skill is also an important part of Tang Xiao's fight against strange birds.

In the battle with the fire bat just now, if it weren't for his own human intelligence, then even in the form of a snake would have been roasted into jerky.

Tang Xiao had enough of the pain of being pressed to the ground in the air, and it was very likely that he was going to fight against the strange bird that also had human intelligence, so although the spray skill was expensive, it could temporarily make up for his lack of long-range attack means.

"Now that everything is ready, there's no need to worry about the rest." After Tang Xiao finished evolving, the frequency of the six tentacles crawling forward gradually slowed down.

View the map at your own pace.

It would take more than two hours or so to get to the location of the skeleton mark, and those red dots that had been stagnant for a long time before the main entrance were even farther away from the treasure.

But since they're straight-line distances, if you don't get in the way, you won't be much slower than it would take you to get there.

It can be said that according to this form, Tang Xiao's situation is extremely worrying.

Later, there are strange birds chasing and killing, and there is a large army of guides in front, who want to rely on speed to catch up with them, defeat the monsters that protect the treasures, take away the treasures and escape, that is even more foolish dreams.

Switching the Coral Snake's five-hour transformation time is the biggest constraint on him.

"You think I'm going to rush there desperately, and hit the time difference?"

Tang Xiao sorted out the plan again in his heart, and after there were no loopholes, he sneered low in his heart, but fortunately stopped completely, and then spread his wings and flew to the top of the wall......

It turned out to be a strange bird waiting behind him!

"Chirp—"

As he wished, a clear phoenix roar from the rear finally chased after him!

Although Shifei Yu is the SS-level bloodline of the phoenix, after all, she is in her infancy, and she has been flying continuously for more than half a day from the middle of the rainforest, and her bright ruby eyes are also a little tired.

But unexpectedly, when he was about to reach the entrance of the cave, the red dot that had been stagnant for a long time suddenly became faster and rushed towards the cave.

He chased after him, but was blocked by a thick secretion that exuded the smell of fire.

In order to complete the task given to her by the guide, and even more so for the guide's 500 evolution point reward, she can only consume a small half of the energy reserves in her body and use flames to burn this secretion.

But unexpectedly, the red dot stopped again.

Don't dare to be careless, the exposure of coordinates is relative, while she can see the other party's movements, the other party can also see her, and the intention to stop in place is obvious, ready to ambush herself.

"Hmph."

The phoenix snorted coldly in his heart, according to the intelligence, the other party is just a poisonous snake with a high level of evolution, and if he has wings, he is born with an undefeated status.

Turn around this corner and you'll find the red dot......

Phoenix's heart was also highly nervous, not much different from the time Tang Xiao entered the battle state, but it was the same calm.

On earth, she is not an ordinary girl either.

Turn the corner!

Pull up the arc!

This series of movements of the Red Feather Bird flowed smoothly, and in an instant, it immediately swept to the soil surface below the road.

There seems to be a flame burning in the eyes of the red feather bird, and as a flood system, its night vision ability is also extremely strong-

The ground is unobstructed.

But......

No?!

"No creatures?!" She's already overlapped with the red dot!

The breath of death strikes suddenly!

is from above......

A black-green liquid shot straight at the Red Feather Bird!