Little Wind lowered his head and obediently listened to the instructions.

As for Little Fox, who was standing on Klein's shoulder, she couldn't help but laugh when she saw how Little Wind looked.

She was clearly very satisfied with Klein's rebuke.

After that, she still didn't know how to deal with Little Wind!

Meanwhile, the giant by the side had already died completely.

With the giant's death, the final veil of the enchantment was removed.

Soon, Klein, Little Wind, and Little Fox returned to the moment they entered the cave.

As for the giant not far in front of Klein, it had dropped a lot of rewards.

The elemental power that covered the ground made the entire cave as dazzling as the rising sun.

Klein walked up.

[System notification: Soul+22]

[System notification: Gold Rune+15]

[System notification: Wind Rune+16]

[System notification: Fire Rune+8]

[System notification: Water Rune+12]

[System notification: Earth Rune+20]

[System notification: Giant's Heart Blueprint+1]

Looking at the system notification, Klein couldn't help but heave a sigh of relief. The boss this time was clearly not a waste.

With such a terrifying drop rate, although it was a little worse than the Stone of Destruction, it had also greatly restored a wave of HP for Klein's poor wallet.

It had to be known that previously, in order to synthesize the Endless Sword, Klein had really invested all of his wealth into it.

Only Klein could take out all of his wealth. If it were anyone else, not to mention all of his wealth, even one-tenth of it would be difficult!

But the result was also good. The Endless Sword was extremely powerful, exceeding Klein's expectations!

It was just that the strengthening was too ridiculous.

Thinking of this, Klein couldn't help but feel a toothache.

That was more than 800 souls. Only a giant could add 8 to the Endless Sword.

It was too damaging!

Klein gathered all the items in front of him.

Then, he took out the blueprint for the Giant's Heart.

[Giant's Heart: An item that a giant explodes during the second stage. This item can help a pet complete its bloodline evolution and increase its strength. It also has a certain chance of awakening a pet's innate skill. Score: 78.]

Looking at the introduction of the heart of the pet, Klein was taken aback.

'It's actually that powerful?'

'In particular, it can increase the evolution of a pet's bloodline. This is a divine artifact.'

Without mentioning Little Wind, Klein had no idea what the source of the pangolin's bloodline was.

Klein knew about Little Fox.

The legendary nine-tailed demonic fox. Once the Little Fox completed her evolution, she had the possibility of becoming the legendary nine-tailed demonic fox.

What was the concept of a nine-tailed demonic fox?

In ancient myths, the nine-tailed demonic fox was a top-notch expert in the demon world. It dared to fight against the existence of the heavens, and its strength was extremely terrifying.

And at that moment, Little Fox had actually stopped growing. She only had eight tails on her back.

It wasn't because Klein was withholding Little Fox's food, nor was he willing to give it good items to eat.

That was because with Little Fox's bloodline, the limit of its growth had already been reached. If she wanted to take another step forward, she could only evolve her bloodline.

But how could evolving a bloodline be that simple?

One had to know that evolving a bloodline wasn't a simple change of blood. It was the source of the bloodline.

Before and after the evolution, they were two completely different creatures.

They were like giants.

At the beginning, the giant was just tall skeleton, and it was only more than ten meters tall.

But after absorbing the first layer of blood aura, which was the Blood Ape's bloodline, it grew to more than twenty meters, and their strength increased by three to four times.

But after absorbing the second layer of blood aura, which was the Ghoul's bloodline, they grew to forty meters, and its strength increased by at least five times.

Moreover, it had also awakened magic usage, unlimited magic, and so on.

If it were not for Little Wind's meritorious service in the end, which successfully made the giant enter a forced dizziness state, and Little Fox's act of snatching the third statue, the giant who had absorbed the third level of the bloodline would probably be at least eighty meters tall. At that time, its strength would probably be something that seven or eight Stone of Destructions could not compare to!

And Little Fox was the same. Clearly, the Giant's Heart was its lifeblood.

'I wonder what the Little Fox would look like after eating the Giant's Heart!'

Klein couldn't help but look forward to it.

Would it really evolve into a nine-tailed demon fox like the legends said, possessing immense strength?

Strength was secondary. The most important thing was whether Little Fox could transform!

Although Klein insisted on playing solo...

However, in the endless catacombs, he only dealt with rocks, soil, and monsters every day. Clearly, the joy of life was reduced by more than half.

If Little Fox could successfully evolve and become the legendary seductive fox demon, it would give Klein a taste of his unchanging life!

After thinking for a while, Klein shook his head. Clearly, it wasn't that easy to make Little Fox transform.

On the other hand, awakening Little Fox's innate ability made Klein's eyes light up.

Little Fox's current innate ability was Rampage.

After Rampage, it increased her movement speed.

However, it was obvious that the crypt creatures Klein was dealing with were very different from before.

The crypt creatures he had dealt with before didn't even have intelligence, much less magic.

With Little Fox's speed, even if she slowed down by ten times, it would be difficult for the monsters to catch the Little Fox.

But it was different now.

The crypt creatures that Klein was dealing with were all extraordinary in strength. Not to mention Little Fox and Little Wind, even he himself could easily capsize at times.

In particular, there was a hidden boss behind all of this, Raksha.

Klein still didn't understand the existence of this fellow. Not to mention the person himself, even his subordinates had terrifying strength.

From this, it could be seen how powerful Raksha was.

Klein didn't believe that these bosses were willing to help him guard the door because they had submitted to Raksha's charisma.

It was obviously ridiculous.

But no matter what, Little Wind and Little Fox weren't strong enough!

For example, this time, Little Wind was almost gone!

Therefore, he had to speed up the matter of helping them refine the Giant's Heart and increase their strength.

Furthermore, the two spirit beasts were of great help to Klein.

One was speed, which had helped Klein solve many problems in the early stages.

The other was strong control.

Strong control was more powerful than speed.

Just think about it. Klein was fighting the boss, and both sides were at a critical juncture. At that moment, Little Wind suddenly made a move, using his Assault Hammer to forcefully stun the boss.

At that time, the boss was casting a large-scale spell. After being forcefully stunned, it might not even need Klein to make a move, and it would immediately suffer a backlash from its own spell!

This could be disastrous for the saber flash that Klein had used 80% of his mana to produce.

The elemental explosion of the saber flash directly reduced the boss, which seemed to be Raksha, to a critical state. If not for Klein not having any hold-back skills, the boss would probably be long gone!

Therefore, be it Little Wind or Little Fox, their innate abilities were extremely important. Klein planned on using the Giant's Heart to evolve both of them!