Hearing Su Chen's question, An Yu was stunned for a moment, and then fell silent.

After a while, he spoke: "The old eunuch is a good man, and I remember this kindness when he spared me not to die." He was buried in Wuli Bridge on the outskirts of the capital, I said everything I had to say, give me a good time......"

After speaking.

He closed his eyes and motioned for Su Chen to make a move.

However, Su Chen was not in a hurry, he still had one of the most critical questions, and he did not get an answer.

So he deliberately shook his head and said: "I'm not afraid to tell you the truth, in fact, there is no so-called secret room and key at all, and when Gonggong Li left, there was nothing left." Even if the so-called holy relic you called is really in the palace, it has already been included in the Great Inner Secret Vault, how can you still stay here, you have been deceived......"

"Impossible! The secret room arranged by the Holy Maiden back then, even if it is a martial arts innate powerhouse, cannot be broken, and it can only be entered through the key. Back then, I heard with my own ears ......"

Speaking of which.

An Yu suddenly came to his senses.

He turned his head, stared at Su Chen, and suddenly laughed: "Haha, I understand." You don't know the clue of the key at all, and the old eunuch didn't tell you, so you want to get it out of my mouth......"

Hearing this, Su Chen's brows furrowed slightly.

This guy is really smart.

However, he didn't show any unusual color on the surface, but just shook the medicine bottle in his hand casually: "I need to cheat you?" Tell me honestly, so as not to suffer hardship. ”

"Hehe, you can't threaten me anymore......"

An Yu shook his head, then coughed violently a few times, and black blood flowed from the corners of his mouth.

"Even if I can't get back the sect's holy relics, at least I can let it fall into the hands of others......"

After speaking.

The head was tilted, and there was no breath.

"Die too quickly."

Su Chen was a little regretful.

When he did it, he didn't think too much, so the poison on the dagger was fatal, plus the other party was injured again, delaying this time, the toxin has penetrated deep into the internal organs, and the gods are difficult to save.

"Although I figured out why this guy came, I also knew that Aoi Yuan might be hiding a treasure. But what exactly the key is, I don't know yet......"

Su Chen shook his head.

There's no point in talking about that now, let's see if we can find any clues from this guy.

So he leaned down and groped around the corpse.

Soon, I found a pocket money bag.

There were some broken silver in it, and there were quite a few silver tickets, almost a hundred taels.

That's worth nearly five years of his money.

The back room is really a place with rich oil and water, Su Chen smiled unceremoniously, poor and rich in martial arts, he has to forge his bones and practice next, and there are too many places to spend money.

With that meager amount alone, I'm afraid that eating will be a problem.

In addition to these silver tickets, Su Chen also found a strange piece of iron in the money bag, with small words engraved on it, and after reading it carefully, he found that it was actually a martial arts technique.

It's called "Blood Jade Hand".

I think it should be the kind of killing technique that Xiao Anzi used before, which can burn his own essence and blood and attach it to the palm of his hand, which is comparable to a golden iron blade, which is very powerful.

It is estimated that it is one of the inherited martial arts of the Great Sun God Sect.

Su Chen just hasn't learned any killing skills now, although he doesn't like to fight bravely, but this is two concepts of not having a knife in his hand and not using a knife.

As long as you can protect the way and save your life, you can learn it all, yes.

But beyond that, there is still no clue about the key and the relic.

It seems that if you want to find the so-called key, you still have to start with the relics of Gonggong Li, and now dispose of the body first.

Between thoughts.

Su Chen put away the iron piece and the silver ticket inside, threw the money bag back on the corpse, and then took out a small black porcelain bottle from the bag on his waist.

This is also one of the poison powders he prepared before, called bone powder.

Can quickly dissolve rotting flesh and bones.

It can be called a miracle medicine for destroying corpses.

"Gonggong Li was estimated to be a ruthless character back then, as the chief eunuch of the technical bravery, I don't know how many people he killed. The prescriptions passed down to me, except for the body forging elixir, are almost all these poisons for killing people and defending themselves. ”

Su Chen got up, pushed open the door first, looked left and right, and made sure it was safe.

Only then did he drag the corpse to the open space behind the house, which was the place where sunflowers were planted before, dig a pit, and sprinkle the powder directly on the corpse, and suddenly made a sizzling sound.

A foul-smelling smoke rose from it, and immediately after, the bones of the corpse were corroded into blood along with the clothes, which quickly penetrated into the earth.

As soon as Su Chen stepped on his feet, the surrounding soil shook and rolled down, covering it, and the snowflakes fell, and there was no trace.

"The sunflowers planted on this land next year will definitely grow extraordinarily full......

Clapping his hands, Su Chen got up and went back to the room, rearranged and installed the mechanisms in the room, and cleaned up the bloodstains.

It's as if it never happened.

After doing this.

Su Chen came to the warehouse next door and opened a box containing some miscellaneous items, including those relics left by Gonggong Li.

Originally, he thought that these things were just ordinary objects, so he didn't take them seriously and put them in the clutter pile.

If what An Yu said was true, the key must be in these relics.

"There doesn't seem to be anything special here, a few old hairpins, chess games, a comb to comb your hair, and a bronze mirror...... No matter how you look at it, it doesn't look like there is a treasure, what is the so-called key? ”

Su Chen frowned.

Before Gonggong Li died, he even passed on his unique mastery to himself, but he did not mention the holy relics and keys at all.

Why?

Could it be that he had already given the key to the eldest princess, or that the holy relic had also been taken away?

If that's the case, then An Yu and himself are all busy in vain.

But in the previous turmoil, I didn't hear that the eldest princess showed her cultivation strength, or used any strange treasures.

The reason why she won was all due to prior planning and the support of the royal ancestor.

"Wait, the night of the unrest......"

Su Chen suddenly thought that the imperial city was turbulent that night, and Gonggong Li himself was on the verge of dying, why did he still play a game of chess with himself at that time?

Chess!

In addition to liking to drink, the old eunuch also played chess.

If he did leave any key clues, could it have something to do with chess?

Come to think of it.

Su Chen hurriedly took out the crumpled chess books, flipped through them carefully, and sure enough, he found a somewhat special chess book.

In general chess games, black and white are intertwined with each other, forming various situations, which are used to explain the split.

But on this game, there are only sunspots.

And the position of Luozi also made Su Chen feel a little familiar, he frowned, relying on his ability to never forget, recalled, and then suddenly realized!

"This is the last game of chess that Grandpa Li played with me. It's a pity that he didn't take the last step and died. Perhaps, my husband has already told me the clue to the key......"

Come to think of it.

Su Chen suddenly got up and went straight to the terrace on the second floor of the library building, where the old mottled chessboard was still placed on the stone table......