Ye Ling went down the secret passage and found that there was a closed metal door underneath, similar in texture to the metal door in the mailroom, but the door lock was not unlocked with a key, but a very strange ring.

Ye Ling carefully looked at the handwriting on the ring and found that it was written on it by Hong Yuanyun.

Hong Yuan Yunshu is an extremely complex technical system, born from the conventions of heaven and earth, the laws of the universe, and ordinary people cannot grasp them.

At the same time, Ye Ling also found a yellowed piece of paper under his feet.

There are traces of glue on the back of this paper, which seems to be due to age, the glue dried up, and the paper fell naturally.

[Brother, you must have received my letter to find here, in this foreign country, although we have different bloodlines, but we can only rely on each other, recently I did a wrong thing, put my own life into it, please be sure to follow the steps in the letter, close this formation that reverses time and space, the back of the letter, is the opening code of this door, if you forget it, take a look. 】

The code to open the door, on the back of the letter......

Ye Ling took the message paper and returned to the study.

In fact, he could use a spell to forcibly break through that door, but pushing himself and others, Ye Ling deduced from the thinking of a Hong Yuan person that Li Lanxing would definitely leave a ban on the door, and as long as it was forcibly destroyed, there would definitely be serious consequences.

The metal warriors had been destroyed by the demons, and some demons had broken into the study, and Garcia was destroying them.

"Let's go, we need to go to the mailroom. Ye Ling said.

He retold the contents of the note to Garcia, and reasoned about it.

Since this piece of paper was not seen by the person entrusted by Li Lanxing, it means that his letter must not have been sent.

Returning the same way, the two of them rushed to the mailroom when they discovered another strange thing.

Ye Ling noticed that the demons that appeared in the hall before were all resurrected, and the corpses on the ground were gone, and they who had been killed once were now jumping towards the two of them alive.

The portraits of evil spirits in the corridor on the first floor returned to their original places one by one.

Ye Ling was very curious, and hurriedly went to the space bracelet to find the portrait that was rolled up by him.

"It's strange, it's gone......" Ye Ling was stunned for a moment.

Soon, he seemed to understand, and said to Garcia: "The time and space here seem to be imprisoned, and no matter what we do, it will return to a fixed point in time, and everything will repeat itself. ”

Garcia frowned and said, "You mean, these demons will keep resurrecting, so we can never kill them?"

"At present, it seems that Li Lanxing's formation must be cracked. Ye Ling said.

As they spoke, the two met the vampire king who was blocking the door of the mailroom.

Ye Ling saw the Vampire King, and strange thoughts surfaced in his mind again.

"If you find a way to close the formation in a while, don't use it in a hurry, these demons are also valuable resources, I want to kill a few more. ”

Even in the Mags continent, the vampire king, which is a "local specialty", is very rare.

Since this ancient castle would replicate them infinitely, Ye Ling couldn't afford to waste this resource.

Of course, this is all for later, and the first task now is to find Li Lanxing's unsent letters.

Whether this letter exists at the moment still needs to be put under a question mark.

After turning the vampire king to ashes in an instant, the two returned to the mailroom.

They were surprised to find that the body of the Valkyrie behind the door had disappeared.

Not only the corpse, but even the shallow key nicks on the ground have disappeared.

"It seems that this castle will also erase the traces of those who came after it. Garcia said.

Ye Ling nodded without question.

Those Valkyries don't seem to know the secrets of this place, but the clues left behind are not the first time they have been erased.

In this way, the Valkyrie, who had just died, left the last bit of clue at the moment before.

In addition, this duke is actually a native of Hong Yuan, and even if those Valkyries find the manuscript in the study, they will not be able to read it.

Ye Ling's arrival became an important turning point to completely quell the crisis of the ancient castle.

Nowadays, this castle is extremely strange, full of contradictions and anomalies of its own.

Leaving aside irrelevant issues for now, they now have to deal with a vast number of unsent letters.

"Let's analyze it first, I don't think it's possible to mix his letters with the servants as a duke. ”

"I agree. ”

The two of them began to search for the room, and there was no letter storage cabinet that seemed to be relatively separate.

Sure enough, Ye Ling was next to the counter and found an inconspicuous metal lock cabinet.

Ye Ling used the seven-star sword to easily pick open the copper lock on the cabinet.

Sure enough, there was only one letter in this cabinet, and that was the letter of the Duke himself!

The recipient of the letter is an official from the province next door, and his name is also a Hongyuan person.

When I opened the letter, the front of the letter paper described in detail the final conclusions of Li Lanxing's research.

He actually boldly said in the letter that the goddess was imprisoned by the Holy See by cruel means, and all along, the so-called blessing of the goddess was actually forcibly extracted by these clergy, and now, the goddess is dead, what Li Lanxing wants to do is to return to the time and space in the past, and tell the goddess not to believe the lies of the Holy See personnel, so that at the weakest moment of the world, he became their prisoner.

"This Li Lanxing is really bold, it is a felony for mortals to reverse time and space, even if he succeeds, he will be severely punished by heaven in the future, why bother......"

Thousands of years ago, in fact, the exercises learned by Hongyuan martial artists were even crazier than they are now, and many of the upper realm's confinement of mortal exercises did not exist back then.

The magic circle that reverses time and space was once prevalent among warriors.

The Upper Realm did not expect mortals to have such wisdom at all, and later had to intervene in person, so that this kind of magic circle was lost in history.

Ye Ling didn't know much about this kind of formation, he only knew that Li Lanxing went to collect dead corpses because this formation needed a special corpse oil.

Strictly speaking, this step is indeed contrary to heavenly principles.

Looking at the back of the letterhead, sure enough, the password to open the secret laboratory was recorded.

With this all in order, Ye Ling put away the letter paper and rushed to Li Lanxing's study again.

It may be that they were a little delayed in the mailroom this time, and when the two of them left the house again, the vampire king reappeared.

Today, this castle has no atmosphere of terror for the two of them.

The most daunting thing is that it sways in front of me three times and twice, and in the end it can only be bored.

Ye Ling casually shot out a star, and before the vampire king could react, it was pierced through the center of his eyebrows.

Before closing the formation, Ye Ling was up and down, and slaughtered more than a dozen times, anyway, the time and space here are disordered, these precious soul resources, don't do it in vain.

Ye Jiancheng shouted: "Okay, boy, Shaking Light Star doesn't need extra ghasts anymore, you don't have to send them in anymore, these things are flying around like flies, and I have to catch them everywhere!"

Ye Ling smiled when he heard this, and said, "Okay." ”

This is, he only felt all over his body, and it was actually a wave of aura rushing straight to his whole body.

"The demons have killed too much, and they are about to break through again!"

Ye Ling was overjoyed in his heart and began to break through again.

Garcia sighed softly and raised her sword and shield.

It's still the familiar cross corridor, or the demons chasing around, and time seems to have returned to before.