The soul bone, which was originally attached to the forehead, was only three inches in size, gradually becoming larger, completely enveloping Dugu Yan's head, and then slowly shrinking, and finally turning into a phantom and integrating into Dugu Yan's head, leaving only a faint green light to wrap her head.

It seems that Dugu Yan's absorption of the soul bone of the head has gradually improved, and Yu Tianlin and Dugu Bo are not in a hurry, so they just wait in the room, but what Yu Tianlin didn't expect is that it takes so long for Dugu Yan to absorb this soul bone.

It was about midnight that Dugu Yan completed the absorption.

Under Yu Tianlin's observation, he could clearly see that after Dugu Yan opened his eyes, a strong green light bloomed in his already green eyes.

The light was overflowing, and Yu Tianlin faintly felt a tingling sensation in his spirit, but fortunately, this feeling was not strong, as long as he resisted a little, this discomfort would disappear.

It seems that Dugu Yan's current spiritual power is already above himself.

This situation is exactly the same as the situation after Yu Tianlin absorbed the third soul ring by himself, but the difference is that he absorbed the soul ring of a 5,800-year-old spiritual soul beast, while Dugu Yan absorbed the head soul bone of a 30,000-year-old non-spiritual soul beast.

In terms of year, Dugu Yan's soul bone was completely crushed, even if it came from a non-spiritual soul beast, but after all, it was a head soul bone, and it had a certain amount of spiritual power, so in general, Dugu Yan's improved spiritual power this time was much more than what Yu Tianlin improved when he absorbed the third soul ring.

If this piece of soul bone comes from a spiritual soul beast, then the improvement of spiritual power is called terrifying.

However, it can't be said who is good and who is bad, after all, the head soul bone of the mandala snake is more in line with Dugu Yan's martial soul.

"Concentrate your mind, gather your spiritual power!"

Like Yu Tianlin before, after the current Dugu Yan's spiritual power has been greatly improved, it has also lost control to a certain extent and is breaking out wantonly, so Dugu Bo couldn't help but let out a low sigh and reminded.

Dugu Yan hurriedly closed her eyes and began to adapt to her surging spiritual power, she seemed to have already learned a little way to control her mental power before, so she quickly restrained most of her mental power.

"Grandpa, I made it!"

After reopening his eyes, Dugu Yan said excitedly.

Dugu Bo didn't say anything, but his expression looked very pleased.

"Congratulations, Sister Yanzi." Yu Tianlin took two steps forward and congratulated, "After successfully absorbing the 30,000-year-old mandala snake skull, my spiritual power has increased greatly. ”

"It's not just mental power." Dugu Yan smiled, "This soul bone also provides me with an attack skill!" ”

"Come on, try it."

Dugu Bo walked directly to the corner of the wall, as if he had pressed a switch, and a steel plate with a thickness of a few feet slowly rose from the center of the room.

This is the residence that Prince Xuexing arranged for Dugu Bo in the Heaven Dou Royal Academy, and it is so comprehensive that even the steel plates for testing are available.

However, Yu Tianlin didn't expect Dugu Bo to be unabashed, and let Dugu Yan show his soul bone skills in front of him.

Not to mention the soul bone skill, even the soul ring skill is a very private thing, if it is not a very familiar person, the soul master will not easily reveal it.

It seems that after he helped their ancestors and grandchildren find a solution to the poisoning problem, Dugu Bo looked at himself differently and completely regarded him as his own.

Hearing his grandfather's words, Dugu Yan did not hesitate, and after retreating to a distance of twenty meters from the steel plate, he directly urged his head soul bone.

Without any warning, a helmet appeared on Dugu Yan's head, and the helmet was dark green and triangular.

A strong dark green light bloomed on the helmet, and Yu Tianlin could see that this light condensed into the shape of a snake's head, and then suddenly flew out straight ahead.

The speed of the snake's head was extremely fast, and it leaped a distance of twenty meters in an instant, and before it hit the steel plate, the snake's mouth suddenly opened, revealing Sen Han's fangs, and bit down fiercely.

Hey, this looks very similar to my Thunder Dragon Claw, but my first soul skill is to condense the soul power into the shape of a dragon claw, and Dugu Yan's soul bone skill is to condense the shape of a snake head, which is also shot out to attack the enemy.

The principle seems to be the same, at most, Dugu Yan's soul bone is higher, so the power of the skill theory is much stronger.

But the next moment, Yu Tianlin overturned his judgment.

Because when the snake head formed by the condensation of soul power collided with the steel plate, it was just a hard bite, and then it dissipated directly.

Uh, won't this snake's head explode? Just pounce on it and take a bite and it's gone? Where does this hurt?

Although he was very surprised, Yu Tianlin quickly reacted.

It's not right.,Can't make such a rough judgment.,Although this snake head doesn't seem to have any powerful physical damage.,But this head soul bone comes from the mandala snake.,So the skill should be mainly toxin damage.。

Thinking of this, Yu Tianlin walked towards the steel plate, and Dugu Bo and Dugu Yan's ancestors and grandsons also made the same move.

When the three of them got closer, they could see that there were four small holes in the steel plate, which were the traces left by the snake's fangs just now.

But apart from the small holes left by these four fangs, there seems to be no other traces on the steel plate, and the effect of the toxin is completely invisible.

The power of this toxin-type skill is still not suitable for testing with steel plates.

Dugu Bo didn't say a word, his five fingers formed a claw-shape, and he directly used his powerful soul power to dig out the steel plate that was bitten by the poisonous fangs.

At this time, Yu Tianlin was finally able to get a glimpse of the whole picture.

Although the surface of the steel plate has not changed much, the interior has been impregnated with a patch of green.

Dugu Bo nodded and said, "Yes, this soul bone skill is very good, and it contains the powerful poison of the mandala snake." ”

"It's just that the poison of the mandala snake is mainly manifested in paralysis and destruction of the body's nervous system, so it is difficult to see the power of this skill with a steel plate."

"If that bite was on the creature's body, you would have been able to clearly feel the power of this skill."

Hearing Dugu Bo say this, Yu Tianlin's heart moved: "Senior, I remember that the toxicity of the Emerald Scale Snake is mainly manifested in erosion and corrosion, if it is combined with the toxicity of the Mandala Snake, wouldn't it be able to achieve a complementary effect?" ”

A paralysis and nervous system destruction, an erosion and corrosion, the two are superimposed, and it is terrifying to think about.

"That's true." Dugu Bo smiled with satisfaction, "After the poison on Yan Yan's body is dredged into this soul bone, then the soul bone skill should be accompanied by both mandala snake venom and emerald scale snake venom." ”

"This kind of mixing is very troublesome even for me."

Not only that, Yu Tianlin planned to let Dugu Yan eat the fire apricot Jiaoshu and the octagonal Xuanbing grass, and then he would add two kinds of poisons, extreme cold and extreme heat.

It is foreseeable that Dugu Yan will surpass Dugu Bo in terms of toxicity in the future.