Haitian and Tang Tianhao carefully searched for the surroundings, except for the shiny luminous bricks, there was not even a single hair, let alone a key.

Judging from the keyhole on the stone door, this key must not be too small, in order to test the depth of this keyhole, Haitian inserted the Huoyun Sword into this keyhole.

What was surprising was that after the Fire Cloud Sword was completely inserted, only one hilt was exposed. And the entire keyhole turned out to be roughly equal to the Fire Cloud Sword.

Haitian and Tang Tianhao glanced at each other strangely, Haitian hurriedly turned the Huoyun Sword in his hand, it was just the Huoyun Sword inserted in the keyhole, even if the Hai Angel exerted all his strength, it didn't turn in the slightest.

"It looks like the Fire Cloud Sword can't be the key. Haitian smiled regretfully, pulled out the Huoyun Sword, and put it in the storage ring.

"I'll try it too. Tang Tianhao said and inserted his Tianhao Sword as well, but it was a pity that this Tianhao Sword was the same as the Huoyun Sword of Haitian, and it couldn't turn at all when it was inserted.

In other words, the Tianhao Sword could not be the key to this stone gate.

Tang Tianhao pulled out the Tianhao sword in disappointment: "It's a pity, but this keyhole is also strange, actually our two sword weapons are inserted into it, and only one hilt is exposed." ”

"Sword?" Haitian's eyes suddenly lit up, and he said with great joy, "By the way, this is it!"

Under Tang Tianhao's puzzled gaze, Haitian took out the scabbard made of red marble that had been stuffed into the storage ring before. Tang Tianhao is not a fool, and when he saw this, he immediately understood what Haitian meant.

The sword weapon they had obtained before the entrance to the second level was most likely the key to the stone door.

Haitian couldn't wait to insert the scabbard into it, but the scabbard was completely submerged in the keyhole, and the head was not exposed at all, and Haitian immediately woke up: "It seems that the yellow-level intermediate sword weapon is also together." ”

"Yes, you wait here for a while, and I'll go back and get the sword. Saying that, Tang Tianhao left immediately, Haitian was not impatient, sat down cross-legged and quietly waited for Tang Tianhao's return.

Tang Tianhao, who realized that the yellow-rank intermediate sword weapon might be the key to the stone door, immediately returned to the entrance of the underground secret room.

As soon as the high-level officials of the Tang family saw Tang Tianhao come out, they were immediately overjoyed, but Tang Tianhao didn't see Haitian come out behind him, everyone's faces suddenly changed, and their hearts sank, could something have happened to Haitian?

Seeing that the faces of the high-level members of the Tang family were not right, Tang Tianhao immediately understood that they wanted to be crooked, and hurriedly said: "Haitian, he has nothing to do. We found out something, Grandpa, you hurry up and give me the Yellow Rank Intermediate Sword Weapon I got from the underground secret room that day. ”

"Yellow Rank Intermediate Sword Weapon, what do you want to do here?" Old Man Tang Yu was slightly surprised, the Tianhao Sword in Tang Tianhao's hand was a Yellow Order Advanced Sword Weapon, and it stood to reason that he didn't need to change to a Yellow Order Intermediate Sword Weapon.

Doubts are doubts, but he is not ambiguous, he immediately took out the treasured Yellow Rank Intermediate Sword Weapon from the storage ring and handed it to Tang Tianhao: "What happened?"

At this time, Tang Tianhao didn't have time to explain, took the sword weapon and ran into the underground secret room, and the voice came from afar: "I'll come and explain to you later." ”

The high-level officials of the Tang family looked at each other, all of them were confused by Tang Tianhao, but they were all more curious, what happened, so that Tang Tianhao would behave like this?

No matter what happened to the high-level members of the Tang family, Tang Tianhao, who had obtained the yellow-rank intermediate sword weapon, immediately returned to Haitian's side, and the long run made him already a little out of breath: "Here, it's this sword weapon." ”

Taking the sword weapon from Tang Tianhao's hand, Haitian looked at it carefully, this sword weapon didn't seem to be different from other sword weapons, if he had to say something different, only the sword handle was engraved with strange patterns.

Haitian didn't waste any more time, and after a few glances, he inserted the entire sword weapon into the scabbard that had entered the keyhole.

I only heard a crisp click, and the stone door, which had not moved at all, suddenly lit up.

Haitian and Tang Tianhao glanced at each other in surprise, they were right. This yellow-rank intermediate sword weapon, along with the scabbard, is probably the key to this stone gate.

Even the key is a yellow-level intermediate sword weapon, so it is conceivable that there must be a richer treasure hidden behind it. Even Haitian, who has many precious sword skills and sword weapons, has already begun to be tempted.

In Tang Tianhao's expectant gaze, the sea angel turned the hilt of the sword. This time, there was no obstacle to the hilt, and in the sound of "crunching", the hilt was turned ninety degrees by the sea and sky.

A series of violent sounds of "......boom" came in an instant, and the stone gate, which had only moved a few centimeters under the full force of Haitian, finally began to move in full, and the underground secret room began to shake violently.

This shaking also spread to the high-ranking members of the Tang family who were waiting at the entrance, and they all glanced at each other in horror, realizing that there might be a drastic change below. It's a pity that the ban at the door prevents them from entering, so they can only wait anxiously here.

The "boom" continued, and the heavy stone door had opened a gap large enough for one person to pass.

Haitian and Tang Tianhao did not act, and waited faintly excited for the stone door to be completely opened.

After a while, the stone gate had been completely opened, Haitian and Tang Tianhao glanced at each other, and cautiously walked behind the stone gate. The more moments like this, the more you need to pay attention. People are most likely to fail when they are about to succeed, and this is when people's vigilance is the lowest.

There are too many such stories in history, and Haitian, who has the soul of the Sword God, naturally will not make such a mistake, and even Tang Tianhao is extremely cautious.

As soon as he stepped through this stone door, Haitian immediately found that it was a huge enclosed room, with only one entrance and exit from this door. The walls around it, like the outside, are made of glow-in-the-dark stone.

"Descendants of the Tang family, you are finally here! I have been waiting for too long. Just as Haitian and Tang Tianhao were cautiously looking at the room, a light suddenly lit up in the center of the room, and an old voice came out.

Haitian and Tang Tianhao were startled and hurriedly prepared for battle. ,

I saw that the light in the middle gradually dissipated, forming the phantom of a white-haired old man. Haitian frowned, he felt that this old man was very powerful, and there was a faint feeling in his heart that even he was not as good as him in the past.

As soon as this thought appeared, Haitian himself was startled. How is this possible?

In the past, although he was not the number one master in the Soul Sword Continent, he was also one of the few people standing at the pinnacle. And the old man in front of him would give him such a feeling.

Seeing the phantom of this old man, Tang Tianhao was also taken aback, and asked reflexively, "Who are you?"

"I am the ancestor of your Tang family, Tang Yin! I have been waiting for you to come for a long time. The old man sighed, as if he were sighing for his boundless years.

It's just that Tang Tianhao fell into contemplation at this time, the name Tang Yin was very unfamiliar to him, he hadn't heard of this name for at least ten generations, and he didn't know if what this person said was true or false.

However, Haitian kept looking at the illusory old man in front of him, and he felt that the old man in front of him was not a real person, but a body formed by energy, which could allow the soul to exist temporarily.

In the past, the sword gods would use this move, which can be regarded as the most life-saving sword skill. It's just that the sword spirit power consumed by this sword skill is very huge, and even the sword god's vast sword spirit power can't support it for ten seconds.

However, ten seconds had passed since the old man in front of him appeared, and the more Haitian thought about it, the more horrified he became, who was he, how could he have used this energy body to exist for so long?

As if he saw the thoughts in Haitian's eyes, the phantom old man was also a little surprised, but he didn't pay attention to Haitian, but directly aimed at Tang Tianhao, as if he could tell that Haitian was not a descendant of their Tang family.

"What's your name?" asked the phantom old man Tang Yin with a pleasant face.

Regardless of whether this old man is a senior in the family or not, the huge power he exudes is not fake, and Tang Tianhao does not dare to be disrespectful: "Junior Tang Tianhao." ”

"Yes, I was able to cultivate to a one-star sword master at the age of fifteen, and I was just like that back then. The fact that you were able to get past the front and get here is a testament to your strength. If you had been chased by those galloping bulls and gone the other way, you wouldn't have seen me. Tang Yin seemed to like Tang Tianhao very much.

Haitian, who had been silent, was keenly aware of the problem in the old man's words, and asked directly: "What does it mean to go to another road?"

The old man Tang Yin glanced at Haitian with interest: "When you entered the second gate, didn't you encounter a large group of running bulls pursuing? Of course, there was only some garbage in that door. ”

"Trash?" The corners of Haitian's mouth trembled slightly, and he didn't know what level of garbage the peerless master in front of him was. However, he went on to ask, "Then what if we were chased by that group of galloping bulls at that time? ”

As if he understood what Haitian meant, the phantom old man smiled: "Those wild bulls are all phantoms, and you won't be really attacked." Of course, once you get hit by a running bull, the ban will take you outside. ”

Hearing this, the corners of Haitian and Tang Tianhao's mouths twitched slightly, this old man is too powerful, right?

Others may not know, but Haitian is quite clear, and it is quite difficult to arrange the teleportation ban. For the prohibition that was difficult for those forbidden masters on the Soul Sword Continent to arrange, he seemed to have no effort.

Who is this old man in front of him who calls himself Tang Yin?