For example, the stone chamber Lu Yu visited earlier was the observation hall for the "Wall" construction plan of the Sand King's palace.

Another example would be the Sand Storehouse that Lu Yu had only seen the door of, which is one of the halls of the underground palace used as a warehouse.

Most members of the Sand King's palace were concentrated in the hall, and Lu Yu only took a few glances from afar and did not approach.

Then, as you walk deeper into the underground palace, after passing through several corridors, you can see a hall with many stone columns standing, where the guards are extremely strict, with a sentinel every ten steps.

As a precaution, Lu Yu did not approach that area. He guessed that perhaps the High Priest Shaqian mentioned by Sha Urjati might be in that hall or in the building behind the hall.

The underground palace is enormous, and Lu Yu had not explored a large area. His exploration was primarily to facilitate his escape.

He arrived in front of the Sand Storehouse, gazed at the massive door of flowing sand waterfall, straightened his attire, and walked toward the Sand Storehouse.

…

Sha Tong was a young sand envoy who had just become a sand envoy not long ago and often received care from Sha Urjati. Saying it was care, it was more like treating him as a little brother.

Even so, Sha Tong was very grateful to Sha Urjati, considering him as his guide.

Sitting absentmindedly at a high point, Sha Tong watched the members of the Sand King's palace below operating the device that controlled the movement of the Sand King's palace. He was somewhat concerned about Sha Urjati's actions just now.

He wondered if he had done something wrong, causing Sha Urjati to be displeased?

Sha Lan's silhouette passed below, and Sha Tong thought for a moment, then quickly jumped down.

"Sister Sha Lan, wait for me." Sha Tong called.

He was always puzzled why Sha Lan liked to wear shoes when feeling the warmth of Mother Earth was only possible by stepping barefoot on the ground.

Hearing this, Sha Lan turned around and looked at him, somewhat confused, and asked, "Sha Tong, is there something you need?"

"Sister Sha Lan, do you think I've done something wrong? Brother Sha Wu saw me earlier and avoided me, not wanting to see me." Sha Tong said.

"Sha Urjati? Don't worry about him; he just likes to fuss over those trivial matters. He'll forget about it in a few days." Sha Lan said.

"Alright." Sha Tong, hearing this, felt somewhat helped, yet not helped.

Watching Sha Tong's departing figure, Sha Lan was puzzled. Why was everyone seeking her to ask about Sha Urjati?

She acutely sensed something was off about Sha Urjati, but she hadn't seen him today and couldn't judge.

Shaking her head, she dismissed thoughts of Sha Urjati from her mind and started focusing on her own matters.

Lu Yu walked in the Sand Storehouse. The reason it was called the Sand Storehouse was not only because its door was a flowing sand waterfall but also because the interior was filled with flowing sand, with treasures stored beneath it.

As he passed holding a golden feather, the flowing sand would retreat, revealing the treasures beneath. However, if he attempted to take the treasures, a counterforce from the sand would erupt, blocking him.

Forcibly extracting treasures from the flowing sand could be done; although the sand's resisting force is strong, it is not unbreakable.

But breaking such a force would surely alert the guards of the Sand Storehouse and the Sand King's palace.

He had not entered the Sand Storehouse before and did not know the correct way to unlock the treasures, so he was just checking if there were any treasures worth the risk of forcibly taking.

Shashasha~ The flowing sand hanging on both walls quickly retreated, revealing the treasures set into the stone walls inside. As Lu Yu passed, the sand would cover the treasures again.

Lu Yu stopped his steps, seeing a large stone basin on the stone wall containing wriggling sandy soil occupying half of the basin space—this was the sandy soil the members of the Sand King's palace had taken out from the Sand Storehouse earlier.

He attempted to extract the sandy soil, but the flowing sand immediately encased the stone platform where the sandy soil was, forming resistance to prevent Lu Yu from touching it.

Conditions needed to be met to unlock this layer of sand barrier, but Lu Yu did not know how.

Glancing at the sandy soil, Lu Yu abandoned it and continued forward.

The sandy soil seemed very mysterious, but its specific function was unknown to Lu Yu, insufficient to make him riskfully seize it.

He continued forward, as the front sand lifted and the back sand closed.

A cold blue crystal surfaced in Lu Yu's view, with heartbeats accelerating upon seeing it.

This was instinct; he instinctively felt this item was crucial to him.

"What is this?"

Seeing the crystal's shape, Lu Yu instinctively took out the Ice and Fire Seven Heavens inheritance jade plate.

At the instant the jade plate was taken out, Lu Yu felt a cold force erupting from it, resonating with the crystal.

"The eighth ice jade shard!" Seeing the change in the inheritance jade plate, Lu Yu recognized this item.

"Why is the ice jade shard here?" Lu Yu was full of doubt; no matter what, he must acquire this shard.

The eighth ice jade and ninth fire jade are pivotal to the most crucial secrets of the Ice and Fire Seven Heavens.

These are secrets that cultivators of the Ice and Fire Seven Heavens have longed for, manifested in sparse words from predecessors within the inheritance jade plate, revealing their longing for the eighth ice jade and ninth fire jade.

It seems no one ever gathered all the shards; at least, up to this point, Lu Yu hadn't found from predecessors' messages what would happen once all shards were gathered.

Lu Yu reached out, aiming for the ice jade, as the sand barrier resisted his hand, severely deforming under Lu Yu's force.