In regards to Zhao Yufei, Ye Xiao had long trusted her and had a deep impression of her. Since this place was something they both had found together, he will just tell her about the iron gate. He didn't want to hide anything from her. Unknowingly, he just can't hide anything from her. In front her, he became like a three years old child who can't lie to his parents no matter what.

"What?"

"What did You said?"

"There is still one more iron gate here."

Zhao Yufei was surprised. After obtaining so many things from here, She never thought that there was still something here.

"And the keyhole of the iron gate is the size of a small ball." " Zhao Yufei asked.

"Yes, but I can't find the key of that size no matter how I search for it." Ye Xiao was already troubled over this matter for a very long time.

Zhao Yufei was also surprised hearing this.

"Let's go to that iron gate" After saying this she along with Ye Xiao jumped into the lake and started swimming toward the iron gate.

When she reached there, she also saw the same iron gate as the previous one there, with a small ball sized keyhole. Seeing this she was also puzzled over this. They both began to search once again for the key only to be disappointed. There were no key of this size in this entire area.

"See, I already said this before that even after searching this entire place for a long time, I can't find anything here." Ye Xiao was too disappointed over this matter.

Zhao Yufei looked at the keyhole gloomily.

Where can I actually find the key of this door?

She got upset too. Looking at the keyhole, suddenly a light flashed in her eyes.

She moved her hand in the air and a small ball sized thing appeared in her hand.

It was exactly the Golden Metal Ball which she got after the strange wall collapsed. This Golden Metal Ball was the source energy for the barrier to protect the wall. It provided the barrier on the strange wall with enough energy to maintain the balance and not let the barrier collapse.

Seeing that Golden Metal Ball, Ye Xiao's eyes also lit up. Maybe there is still a chance, even though the possibility is only 50%. From the moment they both entered this place through the first iron door, this Golden Metal Ball was the only thing that was the size of a small ball.

Maybe this Golden Metal Ball which was also the source of energy for the barrier on the strange wall, is really the key for this iron gate.

They both looked at each other and nodded their head. After that, Zhao Yufei moved her hand toward the keyhole of the iron gate with Golden Metal Ball in her hand and inserted the Golden Metal Ball into it.

"Shuaa!"

Just as she inserted the Golden Metal Ball into the keyhole of the iron gate, a very bright light flashed from the it and began to spreed throughout the entire lake.

They both closed their eyes because of the bright light. After some time, they opened their eyes.

"Shuuu!"

Exactly at that time, with a great speed, an immense amount of spirit energy came out from the Golden Metal Ball and began to cover the entire gate.

The amount of spirit energy in the Golden Metal Ball was already only the 1% of its original energy. And now, that 1% of energy was also gone just like that.

"Chrrr!"

"Chrrr!"

When the spirit energy covered the entire iron gate then with a chrrr sound the door of the iron gate began to open. Some time later, the door was fully opened.

When Ye Xiao destroyed the strange wall and found the Golden Metal Ball, at that time, Zhao Yufei was the one who kept it with herself. Fortunately, she once again came back after going out from this place otherwise Ye Xiao would never be able to open this iron gate that was at the bottom of the lake.

When the door was fully opened, they both was surprised to see that the water was unable to enter through the door. A strange energy formed a force-field around the iron gate that stopped the water from entering through this door. That strange energy was exactly the remaining spirit energy of the Golden Metal Ball.

"The owner of this tomb would really be a great figure of his time. Not only he build and hide the iron gate at the bottom of this lake, he even thought of a method to not let the water enter through this gate when the door will open."

Ye Xiao and Zhao Yufei both was surprised. They had never seen anything like this.

They both entered through the door and appeared in a small room sized cave.

This cave was very simple. There was nothing except for a coffin which was placed at the centre of the cave and a stone table at the left corner of the cave.

"Spatial Ring" Ye Xiao was startled and shouted loudly.

Hearing him shouting, Zhao Yufei first looked at him and then followed his gaze and landed on the stone table.

On the stone table, there was a ring and beside it was a scroll.

"Maybe, the true wealth of the owner of this tomb is inside this spatial ring." Ye Xiao become excited and hurriedly reached near the stone table and pick up the spatial ring.

He send his spiritual sense inside the spatial ring to check what is inside it, but was left disappointed.

"Hehe"

Seeing Ye Xiao's disappointed face, Zhao Yufei laughed out.

"Idiot, you really thought that there was the true wealth of the owner of the tomb inside the spatial ring."

"That...."

"This Spatial Ring was placed so glibly here. I thought that the true treasures of the owner of the tomb is inside this spatial ring." Ye Xiao laughed bitterly at his stupidity.

The moment he saw the spatial ring on the stone table, he hurriedly picked it up.

It was such a stupid idea. He thought, he shouldn't have taken such a foolish step so fast.