After listening to the descriptions of the two, Xu Yang finally understood.

The "Combined Attack" Golden Book, in fact, is the same kind of prop as the "Transfer" Golden Book that Xu Yang obtained in the 21st Black Palace, which can be used in the underground palace.

The function of the Golden Book is to form a team of three people and treat them as one person! When breaking through the level, the difficulty will not increase because the three people participate in the battle, and the strength of the spirit beast is still the same as when one person challenged.

These two Hades Tribulation World Venerables, their status and strength in the clan are not as good as the Hades World Venerables. After they converged, they challenged the spirit beasts all the way, and the keys they obtained were all in the hands of the Immortal Sect World Venerable. The two of them only broke into the outer dark palace at the beginning and obtained a one-star secret key each.

Xu Yang nodded secretly, this joint attack on the golden book has a great effect on the weak and small mysteries working together to break through the black palace with higher difficulty in the inner layer.

Without waiting for Xu Yang to say more, the two One Tribulation World Venerables had already obediently taken out their respective one-star keys and handed them to Xu Yang.

"Now it seems that although the key cannot be obtained by killing people and stealing goods, it can be obtained by extortion while the other party is alive. Xu Yang figured out another problem.

"Daoyou Xuyang, you see that the question is also finished, can you let us go?" the two underworld said in a low voice, cautious.

Xu Yang said: "It's still early. Tell me all the loud voice prompts that you have learned after you have passed each level! If there is a trace of falsehood and concealment, I will not forgive it. ”

In this strange dungeon, gathering intelligence is naturally the first priority. As the rules and clues of the grand sound prompt, it is even more important.

For this information, the two world-honored ones did not hide the slightest thing, and spoke out very happily.

Xu Yang listened attentively, among the hints that the two said. The clues about the location of the White House are basically what Xu Yang has heard. It's just that there is a message about the secret key, but Xu Yang has heard of it for the first time!

"Five one-star keys can be combined into a two-star key?" Xu Yang asked, "What you said is true?"

"It's true! This is the Immortal Venerable. When he got the five one-star keys, he got a grand sound prompt, and he did succeed in synthesizing. The severed Hades said.

Another Hades World Venerable added on the side: "It's just that the two-star key obtained through the guò synthesis method can only be used to open the two-star ban, and cannot be used to synthesize a higher-star key." ”

Xu Yang nodded with satisfaction, this is very precious information.

In this way, the value of the one-star key has increased. But it is also of limited use. The inability to synthesize it again means that there is no way to pass a large number of one-star keys, and the layers of synthesis become three-star keys, not to mention four-star or even top-level five-star keys.

In the end, Xu Yang confiscated the storage rings, corpse gongs and other items of the two Hades World Venerables, and waved them away.

"Little Xuanzi, why did you let them go?" asked Bronze Plate.

Xu Yang said: "These two people have provided me with a lot of information. Besides, with their strength, after losing the corpse gong. Not being able to control the world-honored corpse refining is no longer a threat to me. It is useless to kill. ”

"This is a bit unlike you," Bronze Plate said, "When you were in Middle-earth, you wanted to kill all the alien races, so that the human race could rule the Tianxuan world again." ”

"When the realm is different, the ideas will naturally change. Xu Yang sighed and said, "When I was in Zhongzhou, I witnessed the brutality of the dog clan slaughtering the city and bleeding thousands of miles, so I was naturally angry. I want to kill all the aliens. But in Yingzhou, although the human race was oppressed and the mountains and rivers were broken, they were not slaughtered on the whole, and my murderous intent naturally faded. ”

"Is there any influence from that little fox here?" Bronze Plate asked suddenly.

"Cai Fence?" Xu Yang was slightly stunned, and then smiled: "Maybe...... You're thinking too much. ”

The bronze plate laughed, said no more, and then said: "Now, your saint ancient corpse has also been used, but you have not been able to kill King Jin Tai and the Immortal Chip." They're bound to spread the word among their tribes that you've used up your hole cards. What's next, do you have any plans?"

Xu Yang smiled and said, "Although the saint ancient corpse is strong, there are too many restrictions, and the number of shots is too small, so I still have to focus on improving my own strength! Now, I have five one-star keys and one two-star key, just taking advantage of the treasure in the No. 33 White House to cultivate and improve myself!"

As Xu Yang spoke, he had already spotted a cyan light, and reached out to grab it! The blue light fell into his palm like a match, bouncing endlessly.

"It's really a strong prohibition, and it's hard to open without a secret key. Xu Yang observed the cyan light in his hand and said.

The cyan light, like a transparent eggshell, tightly wrapped the treasure inside. Now that Xu Yang is holding it in his hand, he can vaguely see the clues of the treasures in the shell.

The treasures in the blue light turned out to be crimson blood! In this cluster of blue light, there were as many as five.

"It's a pity! My blood spirit is not lacking, what I lack is the understanding of the law! Although I have fought many battles and have a deeper understanding of many laws and truths, I am afraid that it is not enough to break through with this. Xu Yang shook his head and said.

"Little Xuanzi, you might as well give it a try, that white light cluster. On the surface of the bronze plate, an illusory arrow appeared, pointing at a white ball of light in the air. As the white light cluster continued to fly, the illusory arrows on the surface of the bronze plate were also constantly changing direction, pointing out the direction to Xu Yang.

"Well, two-star prohibition?" Xu Yang knew that the bronze plate would not be untargeted in important matters, so he immediately reached out and grabbed it, a big colored light hand, and grabbed the white light cluster flying in the air!

Under the grasp, Xu Yang suddenly noticed the strangeness of the white light cluster! As a two-star prohibition, the white light cluster flew much faster than the cyan light cluster, and it was very slippery, Xu Yang almost missed the grasp when he grabbed it.

Caiguang's big hand grabbed the white light cluster back, and Xu Yang looked at the treasures in it through the light cluster, but he frowned slightly.

In this white light cluster, there was only a small transparent crystal, which seemed to be like a fragment split, and its shape was irregular.

"What is this?" Xu Yang asked, "It seems to be just a defective product." ”

"Little Xuanzi, don't underestimate it! If it is intact, it is impossible for this spar to be in a two-star prohibition, at least at the four-star prohibition level," Bronze Plate said with a smile, "So, you have made a lot of money." (To be continued......)