The next day, Lin Mu and Lin Dong followed Lin Fan to the palace, and under the leadership of Mo Jingtian, they came to the depths of the palace.

In the depths of the palace was not a splendid palace, but a forest, and in the middle of the forest was an altar, which was covered with strange runes, and faintly powerful energy fluctuations emanated from it.

"The Holy Spirit Pool is hidden in the altar, which was jointly built by the royal family, the four major clans and the three major sects, and is opened once in twenty years." Lin Fan explained for Lin Mu and Lin Dong.

Lin Mu nodded slightly, he knew that there was an ancient crocodile skeleton at the bottom of the Holy Spirit Pool, this was a good thing, and he was here for this trip.

"Everyone, everyone has arrived, let's open the altar." Mo shocked and glanced at everyone, and then said loudly.

Hearing Mo Tiantian's words, Lin Fan and the others stepped forward and stood around the altar.

"Do it."

Mo shook the sky and let out a low snort, and then began to seal, Lin Fan and the others were the same, and one after another light burst out and disappeared into the altar.

The altar hummed, and the top of the altar slowly rose and then spread open, forming a huge vortex of energy, from which a strange energy seeped out.

"Mo Ling, Lin Mu, Lin Dong, Du Yun, Manshan, the five of you enter quickly, how much benefit you can get depends on your ability." Mo said in a deep voice.

As soon as the voice fell, Mo Ling took the lead in moving, and his body turned into a vague afterimage, entering the whirlpool, followed by Du Yun and Manshan.

Lin Dong glanced at Lin Mu, Lin Mu nodded, and the two jumped in together.

After a brief period of darkness, a soft light filled the eyeballs, and a faint fragrance came to the nostrils, and there was a little dampness in this fragrance.

In front of them there is a huge pool, the water in the pool is turquoise, and the thick vitality energy emanates from it, and when you take a breath, you can feel the cells of your whole body jumping.

"Ladies and gentlemen, this Holy Spirit Pool is divided into five parts, one for each of us, and for the sake of fairness, draw lots to decide what about their respective areas?" Mo Ling said.

"I'm free." Lin Mu said lightly.

Du Yun and Manshan naturally would not object, Mo Ling mainly looked at Lin Mu's meaning, Lin Mu agreed, and naturally decided like this.

Mo Ling casually threw out some points of light, and everyone grabbed one each, the one that Lin Mu grabbed had 'North' written on it, and the one that Lin Dong grabbed had 'East' written on it.

"Time is limited, let's hurry up and absorb the energy of the Holy Spirit Pool." After Mo Ling finished speaking, he then jumped into the area that belonged to him.

"Xiaodong, you absorb my piece, I'll go to the bottom of the pool to have a look." Lin Mu transmitted the voice to Lin Dong, Lin Dong nodded, before coming, Lin Mu had already told him.

After Lin Mu entered the Holy Spirit Pool, he dived to the bottom of the pool.

Although the Ancient Celestial Crocodile was dead, its skeleton still exuded a huge coercion, and even an ordinary Nirvana Realm could not dive to the bottom of the pool.

However, this coercion was nothing to Lin Mu, he was now a dual-element nirvana realm and a two-seal heavenly talisman master, and he had also cultivated the powerful body refining technique of the Thunder God Body.

In about a quarter of an hour, Lin Mu dived to the bottom of the pool and saw the huge skeleton of the ancient celestial crocodile.

"Move it back first." Lin Mu said secretly in his heart.

The skeleton of this ancient crocodile is a treasure, not to mention the essence blood of the crocodile contained in it, this bone itself is also extremely hard, and it is a good material for refining spiritual treasures.

"It's a big thing."

Lin Mu swam to the side of the skeleton and took a lot of effort to put it into the Qiankun bag.

After collecting the skeleton, Lin Mu saw that there was still a bone gun at the bottom of the pool, and his right hand reached out, so he sucked the bone gun over, and the seemingly small bone gun weighed 10,000 catties.

"This is the Natal Spirit Treasure that the Ancient Celestial Crocodile refined with his own bones." Lin Mu said secretly.

This bone spear is the top among the earth-level spirit treasures, much better than the Da Luo Golden Spear that was snatched from the Wang family before, and if it is guided by the powerful demon beast essence blood, it can summon the demon spirit of the ancient heavenly crocodile to come out to help.

"It's time to go back." Lin Mu put away the bone spear, and then swam to it.

When he returned to the water, Lin Dong and the others were still absorbing the energy in the Holy Spirit Pool, with the help of the Devouring Ancestral Talisman, Lin Dong absorbed the energy much faster than Mo Ling and the others, but Lin Dong did not take action to grab the energy of the three of them.

After most of the day, Lin Dong, Mo Ling and the others also woke up one after another, and the original turquoise Holy Spirit Pool had turned into a clear color, and the energy inside had been absorbed by them.

Originally, there was the skeleton of the ancient crocodile, and the energy inside would slowly recover, but now that the skeleton of the ancient crocodile has been removed, this Holy Spirit Pool is not much different from an ordinary pool.

"Congratulations to Brother Lin Dong, Nirvana Realm is hopeful."

Mo Ling and the three of them saw that Lin Dong had absorbed two parts of energy alone, and their eyes were a little envious, but no one dared to say anything, who let Lin Dong have a brother in the Nirvana Realm?

"Each other, the three of them have also absorbed the energy in the Holy Spirit Pool, and the success rate of entering the Nirvana Realm will also be greatly increased." Lin Dong smiled slightly and replied.

"Let's go out, don't let everyone wait outside in a hurry." Lin Mu Road.

The group nodded, and then jumped into the vortex that had come in before.

Outside the altar, Mo Jingtian watched all five of Lin Mu come out, and shouted in a low voice: "Close the altar." ”

Lin Fan and the others' handprints changed, and the whirlpool on the altar slowly disappeared.

"There are still ten days left before the Great War of the Hundred Dynasties, and after ten days, you will be directly teleported into the ancient battlefield, and how much you can achieve at that time depends on your own ability." Mo Jingtian's gaze swept over everyone, and stayed on Lin Mu's body for a moment.

Among the five people, only Lin Mu entered the Nirvana Realm, and the possibility of being favored by the super sect was the greatest.

After leaving the palace, Lin Mu did not fall back to his feet, but came to a mountain range outside the imperial city, and Lin Dong also followed him.

"Big brother, what treasure did you find at the bottom of the pool?" Lin Dong asked a little impatiently.

With a smile on his face, Lin Mu released the skeleton of the ancient heavenly crocodile from the Qiankun bag.

A black shadow quietly appeared on Lin Dong's shoulder, it was Xiao Mink, and said indifferently: "I felt the breath of an ancient divine beast in the Holy Spirit Pool before, but I didn't expect it to be an ancient crocodile." ”

"This skeleton contains the essence blood of the ancient crocodile, allowing Xiao Lei and Xiao Yan to absorb it, which is of great benefit to them." Lin Mudao, then shook the other sleeve, and the pocket version of Xiao Lei came out of it.

Lin Dong also shook his sleeves, and Xiao Yan came out of it.

"Big brother, apart from this skeleton, are there any other good things?" Lin Dong asked, although this skeleton is good, it is of no use to him.

"Take it." The light flashed in Lin Mu's hand, and the bone spear of the ancient heavenly crocodile appeared on it.

The shape of the Sky Crocodile Bone Gun is very simple, although it is said to be made of bone, but it looks like jade, and there is a special chill around the tip of the spear.

"Good stuff." Lin Dong saw the Sky Crocodile Bone Spear, and his eyes suddenly lit up.

"This bone spear should be a natal spirit treasure refined by the ancient heavenly crocodile with its own bones." Mink Road.

"Demon beasts can also refine spirit treasures?" Lin Dong said in some surprise.

"A more powerful demon beast can refine a natal spirit treasure, you don't even know this." The little mink gave Lin Dong a look of contempt.