Since Milia's state stabilized, several people set off for home, and the five-person team set off from the Lost Tower, hurrying while clearing the monsters, and Li Yunfei focused on analyzing the heart of the angel, and would choose to be stationed and rest from time to time, so of course this speed would not be too fast.

The dozens of floors of the Lost Tower have been gone for more than ten days, but now they have entered the Lost Sea, which is not a complete underwater world, and it is also possible to fly on the sea, but it is very dangerous to do so.

Because flying in the sky will also be discovered by underwater monsters, and it is difficult for people flying in the sky to face the monsters underwater, and they will often be attacked by sneak attacks, so the safest way is to kill all the way from the bottom of the sea, which is not very deep.

There are two less main outputs in the team, and the speed of progress is suddenly much slower, Milia's current strength is not even as good as that of the second turn trialist, of course, he can't be the main fighter, as for Li Yunfei, his mind is full of formation circuits, like a demon, of course, he can't be a pioneer.

Now it is Lucy who is leading the team forward, Li Yunfei is even more fascinated by the study of the angel's heart, and even needs someone to give a hint to walk, otherwise he will be lost.

To be honest, if it weren't for the fact that the three girls wanted to go back as soon as possible, Li Yunfei would definitely find a safe corner to hide and analyze those formation patterns on the angel's heart.

The monsters of the Lost Sea are basically considered to be three-turned, and those monsters will not be so crazy during the day, but once night falls, they will become crazy, and their combat effectiveness will increase a lot.

"Sister Lucy, let's take a rest first, we are all over the upper limit of taking pills."

"Okay, night is coming anyway!" Lucy took out an enchantment formation disk and put it on the ground, and an enchantment instantly unfolded, squeezing out all the water nearby.

"Captain, wake up, it's time to rest!" Linni said something in Li Yunfei's ear, and finally temporarily woke up Li Yunfei, who was immersed in the formation.

"Oh!" Li Yunfei responded casually, quickly took out a few tree houses and laboratories, and went directly into the laboratory without even saying hello.

"Eh, I really don't know when the captain will return to normal!"

"Yun Fei is actually very normal, this time his formation research will have a big breakthrough!" Lucy understands Li Yunfei's state very well and even envy it.

"It's been a hard time these days, the three of you!" Milia leaned over and said.

"It's not hard, by the way, Milia, when will your body be fully reunited? It's always floating around like a ghost, and it looks a little weird. ”

"You're going to just get down, it might be a few months before you can completely rebuild your body."

……

It is said that Li Yunfei, who entered the laboratory, took out the Edman metal plate and Mithril powder as soon as possible, and began to make a Mithril formation, which was the result of analyzing the Angel's Heart in the recent period.

Although it is said that the formations used by the Angel Heart are all circuits formed by the mutual induction of energy points, as long as this kind of thing really understands the principle, of course, it can also be copied with Mithril to copy the formation circuit, and what needs to be done now is to make a basic formation to verify the speculation of the past few days.

There was an Edman metal disc in the fireball floating in the air as the base material of the formation, and the melted Mithril quickly formed a very special small formation attached to the base material of the formation.

According to the inferences of these days, this formation is one of the key formations that the angelic heart can carry the soul, and the specific function has been preliminarily analyzed, probably to sense the soul fluctuations and then convert that fluctuation into a pulse signal cohesion. The fireball disappeared and attached to the Mithril Formation and quickly cooled, and the formation used for the kung fu experiment was completed in just a few moments.

At the moment when the Mithril formation cooled down, Li Yunfei sensed the effect of that formation, and he could basically be sure that his previous speculation was correct without any formal test.

With the fluctuation of the mind, the two protruding points of the formation quickly flashed with force field pulses, and with this pulse......

"Damn, this is a success?" The success of such a simple experiment made Li Yunfei himself a little unbelievable.

"You're really amazing, and you've made new achievements so soon!" Lucy's voice sounded from behind Li Yunfei.

"Uh, when did you come in?"

"I followed up at the beginning, but you were too focused...... What did you get this time? ”

"It's not a big deal, it's just a very basic thing, but it's also very practical, and I'll make you some magical equipment when I'm free!"

"Then thank you in advance...... Yunfei, I have something urgent and must go back immediately! ”

"Oh, then tomorrow I won't study the formation and go all out!"

"It's too late to hurry, I want to use the emergency return charm to go back directly!"

"You can also use the Returning City Charm here?"

"It's an emergency return to the city talisman, not an ordinary return to the city talisman, this emergency return talisman is more precious, and all the lost places can be used."

"There is still such a thing, but since you have an emergency return talisman, why don't you go back directly to the Lost Tower?"

"At that time, you were single-mindedly in the formation, and if I left, Linnie and Amyke would be exhausted to death."

"If you're gone, you'll probably stay in the Lost Tower for another month or two before you leave!"

“…… Or am I being sentimental? Li Yunfei's words made Lucy a little annoyed.

"Why, thank you for thinking about us...... By the way, the teleportation array in Frost City is broken, can you really go back with your emergency teleportation charm? ”

"I'm going to the Imperial City of the Terrans and not to the Frost City, what does it matter if it's broken over there."

"I see, okay, you go back first...... If you want to continue to form a team, be sure to meet in the Frost City in two months! ”

"Thank you...... Guys, I'll go first, goodbye! Lucy said to the bracelet, and directly activated the emergency return charm, and the person disappeared as a light. A few people hurried over, and they wanted to tell someone or something, but they didn't expect that the people had already left.

"Sister Lucy is in such a hurry!"

"Yes, it's really in a hurry, everyone will go and rest, I still need to do some experiments."

“…… Captain, I want to go back once too! After hesitating for a long time, Amy finally made her request.

"Do you have an emergency return charm?"

"Yes, the elders will give it!"

"Alright then, you can go to the Frost City and have a round with me in two months."

"It's not us, I'll go back first, Linnie won't go back."

"Oh, go early and come back early!" Seeing that Amy didn't rush to take out the emergency return to the city charm and disappeared with a whoosh, she simply reached out and kissed someone.

"Captain, I'm going to miss your awesome!" Amy whispered something in Li Yunfei's ear, and then disappeared with a swish, making Li Yunfei stunned there for a while, this girl has been with her for a long time, but she has learned badly.

“…… Sister Linnie, do you have an emergency return to the city charm, borrow me to study! ”

"This thing is very precious, I really don't have it!"

"I have it, it's just that the teleportation array in Frost City is broken and can't be used now, so Brother Yunfei can take it if he wants it." Milia on the side directly took out the jade talisman and floated in front of Li Yunfei.