From then on was a thirty-three-year era of divine martial arts.

The monarch and ministers of Summer Country worked with one heart, striving to rejuvenate the nation, reestablishing the National Defense Great Formation, and rebuilding a strong army. In secret, they also rebuilt the Sī Xuán Underground Palace as their trump card, yet they publicly declared that the restoration of the Sī Xuán Underground Palace was still far away.

Unfortunately, this trump card was actually Emperor Qi Jiang Shu’s hand all along!

During the retreat thirty-four years ago, Qi Country had already planted this nail.

Thus, in the final Qi Xia War, it was so easy for Xie Huaian to break through the city named "Noble City".

That’s why the extraordinary woman, Empress Dowager Xia, offered no resistance and chose self-immolation. Otherwise, even though deeply wounded by her own son, she would have done something—yet at that moment, it was indeed impossible to accomplish anything.

Because the Sī Xuán Underground Palace, on which the Xia Court relied as one of its last resorts and the final reliance of Guiyi City, refused the summoning at that crucial time!

Those in true power within the Xia Court understood what that meant.

Why, in the entire Qi Xia War, was Qi Country so well-informed about Summer Country’s situations?

Because of Ming Shouqi.

Why did Summer Country’s meticulously established intelligence system look like a sieve?

Because of Ming Shouqi!

And the Sī Xuán Underground Palace itself holds even greater significance.

Throughout history, there has been no tool superior to man.

No matter how strong a tool is, it must be wielded by a human hand.

No matter how great a mechanism is, it is a creation of humans.

Cultivators suffer lifelong hardships, and generations of cultivators exhaust their wisdom to continuously expand the boundaries of cultivation.

There’s no reason for inanimate objects to surpass living beings or for magic artifacts to surpass True Persons.

Since the complete downfall of the tool repair path, this stands even more true.

All apparatuses have limits, while the path of the transcendent holds endless potential!

The Mo Family used the power of contemporary Xianxue, striving for so many years, pouring their hearts and minds into creating transcendent puppets, yet they too could only at most reach the True Person Level, each use depletes one, and they cannot be mass-produced.

Other magic artifacts, needless to say, usually only function in low-level battles. Those capable of engaging in battles at the Divine Arrival Layer are exceedingly rare. Those capable of engaging in True Person Level combat are even more rare!

But when it comes to the True Monarch Level, no matter what magic artifact you have, it cannot function. A mere thought can shatter it, a mere thought can decay it.

Even the weapons of True Monarchs, once disconnected from the nurturing of the True Monarch, will rapidly degrade.

However, throughout history, there has been one exception.

That is the Cave Heaven Supreme Treasure, painstakingly crafted by countless sages utilizing Cave Heavens birthed by the heavens and the earth!

This is also one of the fundamental reasons why Cave Heavens are valued far above blessed lands.

As in the past, Yang Empire’s Sun Palace, roamed the heavens, dominated the Eastern Region, who dared to disobey?

The Sī Xuán Underground Palace is of this kind!

Though its predecessor was only one of the Thirty-six Minor Cave Heavens, the Cave Heaven Supreme Treasure it crafted was sufficient to interfere in Yan Dao Level battles.

Now Ming Shouqi, wielding the Sī Xuán Underground Palace, has established the grand scheme.

King Zhao, knowing the great affair was difficult to accomplish, said not a word, allowing the faint gleam of green thunder outside his Dao Body, and with just a turn, was ready to traverse ten thousand miles away.

"Halt!"

Ruan Qin, with her ink-black hair fluttering, stepped onto the dome of the Sī Xuán Underground Palace.

In an instant, radiant light burst forth, rivaling the blazing sun, covering the Nine Heavens, and this magnificent underground palace unleashed unimaginable might, directly suppressing King Zhao!

Ruan Qin, hidden in the Sī Xuán Underground Palace for many days, was not just waiting for unexpected changes like those of King Zhao of Equality Country.

He had been familiarizing himself with the Sī Xuán Underground Palace all along, so much so that at this moment, he could directly manipulate the Sī Xuán Underground Palace!

This was Qi Country’s hidden move during the War of Xia that hadn’t been revealed, lying in wait for so long, and today, it was thrown in the face of Equality Country!