The three of Ning Xi walked into the castle, and inside the door was a room.

There were two sand-table-like objects in the room, on which were placed some array flags and stone statues carved in the size of the mother of fingers.

"What is this? It's like the sand table of the battle between the two armies. Ning Xi looked at the two sand tables curiously.

Luo Yinhuang looked at the two sand tables carefully, and said after a moment: "This should be a kind of array chessboard, these stone statues are controlled by array flags, like a chessboard for two people to play." ”

"Is this a battle between two boards, or is it a battle against other boards?" Ning Xi also saw some doorways.

Luo Yinhuang approached and saw that there was an empty recess on the two sand tables, and immediately threw the two formation disks over.

The formation disc spontaneously flew up and was embedded in two recessed positions.

Then a reflection sand table appeared on the wall, also with a banner and a stone statue on it.

"Looks like we're going to need to defeat the one on the wall with the one on the two sandboards before we can move on." Luo Yinhuang said with interest.

Ning Xi also showed interest, she was now learning the formation and was energetic, "Then let's try!" If there is something you don't understand, you teach me! ”

Luo Yinhuang smiled and nodded: "Okay!" ”

Jing Yi could only refine weapons and was not good at formations, so he retreated to the door and sat cross-legged, helping the two of them to guard while comprehending the practical experience of fighting with the rock giant before.

The things on these two sand tables do not need to be controlled by Xuan Li and Spiritual Sense, and they can be used to control the stone statue battle on the formation flag instead of using their minds.

Soon, Ning Xi and Luo Yinhuang were completely engaged.

Ning Xi would encounter bottlenecks from time to time, so he asked Luo Yinhuang, and after getting a detailed and concise explanation, he quickly understood it, and absorbed the knowledge of the formation very quickly.

At the beginning, because Ningxi's side had big defects in the formation, he lost ten games after ten rounds, but the time to hold on each time would be extended.

Time flies, and half a month flies in a blink of an eye.

There was a rumbling sound in the castle room, and the sand table reflected on the wall completely collapsed and disappeared.

Ning Xi smiled with his eyebrows, "Through such a sand table battle, my formation spells have improved rapidly!" ”

The ancient monk who invented this kind of array chessboard battle to improve the ability of the formation is really too wise.

Luo Yinhuang smiled slightly: "Well, I have also comprehended a lot of new things. ”

After the sand table on the wall collapsed, the door to the room opened.

As the three of them entered, they saw three higher-level rock giants once again guarding the door inside, trying to defeat them if they tried to enter.

So the three of them started a new round of experience of being ravaged first and finally fighting back.

After such a test, the strength of the three of them has improved rapidly, and they have almost reached the realm of selflessness, and the people outside are anxious to death.

Yan Wushuang and the others found two underground caves under the snow mountain, and everyone went in to look for them, but except for the vast underground magma river, they found no signs of the survival of the four people in Ningxi.

After looking for more than half a month, everyone had a bad feeling in their hearts.

"Could it be that Luo Di, who is known as the first genius of the Four Kingdoms, would have fallen in a small place like the Kunlun Secret Realm?" Emperor Tianyan said in disbelief.

Jun Jiuli's face was pale and his eyes were complicated, "Maybe it's just that we didn't find it." ”

"That black-hearted and black-livered Luo Di is not so easy to die, not to mention that there is an even darker Ningxi beside him, and people say that the scourge will last for thousands of years." Yan Wushuang still had a glimmer of hope.