The letter was not signed, only titled and posted.

The purpose here is for the "Watchers" to see.

The magic used to write this letter is very particular. If it is forcibly broken, it will automatically burn.

It seems to have adopted some secret method of the night elves.

However, Zong Shen does not need to forcefully crack the letter, because he has a strategy module, and any concealment, cover-up, or confusion cannot hide from the strategy module's exploration.

In this case, Zong Shen successfully obtained the information in the letter.

Judging from the description in the letter, it seems that Azshara's quadrangle barracks sank and was buried underground on its own initiative.

Even before the fall of Azshara, the elves had plans prepared in advance.

This is what is called preparing for a rainy day. As a giant city of the elves, they have stored a batch of materials in the sewers in advance to build bunkers and rebel camps in the mines.

Moreover, when building the city's sewers, preparations were made in advance to connect the northern mountains and forests to the mines in the northeast. It has to be said that they are still very skilled.

This also laid the foundation for the Allied forces to launch a counterattack later.

In fact, Azshara, as a huge elven city, may not be as large in population as the huge city of the human kingdom that has reproduced like crazy now, but it still has at least millions of soldiers and civilians.

Excluding those soldiers and civilians who died in the attack, hundreds of thousands of soldiers, civilians and coalition forces became sacrifices to the devil and were buried in the [Bone Burial Ground].

This number is still cruel, but compared to the total number of soldiers and civilians in Azshara, it is still acceptable.

Therefore, it also shows that Azshara did not allow herself to be invaded and slaughtered by demons like a lamb waiting to be slaughtered.

Although the blood-burning demon is menacing and powerful, Azshara is not weak.

More soldiers and civilians should have completed their evacuation ahead of schedule through Azshara's sewers.

After Zong Shen read the contents of this letter, he suddenly felt a sudden enlightenment.

He put the letter away, maybe it would be useful in the future.

With [Chimera Roost] as the center point, the surrounding ruins and buildings have been cleared.

The relevant harvests and items were all put into [Pascal Contract's Big Bag (Gold)] by Zong Shen, leaving them to be sorted and sorted after a smooth return.

Now it's time to enter the sewers of Azshara.

Before that, you need to prepare your team first, because you may encounter a battle after entering the sewer.

Cavalry warriors were not suitable to enter, so the wolf cavalry could only return to the ground.

At this time, after several hours of excavation and exploration, the sky had darkened, but it was not completely dark. There was still a dim twilight shining on the earth.

The poisonous mist in the poisonous swamp lost the support of [Advanced Poison Quenching Beads (orange)] and quickly dissipated under the natural air flow. It was not known whether Lord Lengtouqing would come over.

Thinking about it, it shouldn't be possible, after all, Xiao Heizi's record is there.

In half a day, hundreds of lords and their accompanying warriors were slaughtered, a total of four to five thousand people!

Absolutely an out-and-out murderer!

This place has also become a nightmare in the hearts of most lords in the area.

And everyone knows that the black dragon has been tamed by Zong Shen, and the dragon nest and poisonous swamp have also been searched. Without clear interests, no one will come here to cause trouble.

Zong Shen stayed in the excavated underground hall and called Vereesa, Zoe Babbitt and the great adventurer ghost Jacques Picard.

Since this is a risky operation, Zoe's wish must be fulfilled.

As for the accompanying soldiers, Zong Shen did not plan to bring too many.

First, a small team of Lion Guard Knights were mobilized. They were equipped with shield swords, could dismount and fight on foot to act as shield warriors, and also had the attributes of fifth-level warriors.

Overall, it is more useful than the third level [Dragon Transformed Gun and Shield Warrior].

Then came the shooter. He asked the two sisters Madeline and Mapel to bring down a small team of dragonborn rangers. The two fourth-level rangers and twelve third-level rangers were enough to maintain a certain degree of long-range attack strength.

Finally, there are the mages. Favid and Wind God's Favorite Canigia, who have been promoted to heroes, are indispensable. Secondly, Zong Shen has deployed six third-level [Fire Mages] and two third-level [Necromancers].

Mage], two [Water Mage], and three [Holy Light Priests] accompanied them.

Tasia and Aysia did not come for this operation, they had other missions.

After Zong spent more than ten minutes preparing the team, Zong Shen took out the [Dragon-Slaying Heavy Sword (Gold)], held it with one hand and punched it on the ground, standing next to the gate of Azshara's sewer.

As far as he knew, there was more than one underground sewer gate in Azshara, and there was also one underneath the former rogue camp.

Looking back now, perhaps Azshara's downfall was partly subjective.

The second is the impact of changes over time and changes in terrain caused by vicissitudes of life.

In other words, before Azshara completely fell, the elves chose to actively bury the city and the land and fight underground.

Zong Shen immersed himself in searching the storage compartment and took out a silver-white rune key.

The workmanship of this key is quite good, and occasionally there will be a silvery white light flashing through it.

Yes, this thing is an item he has obtained for a long time.

[Azshara Gate Key (Purple)]

This thing claims to be able to open all the rune gates in Azshara's sewers!

Now it’s time to test the results!

The surface of this underground gate was covered with thick mud. Zong Shen specially asked the water mage to fire several water arrows to clean it before he found the keyhole.

At this moment, the strength and properties of the gate were displayed in front of his sight.

【Azshara Sewer Gate XII】

[Sturdiness value: 972365/1000000 150000]

[Building Armor: 205 55]

[Building magic resistance: 200 55]

[Defense effect: The shelter of the Well of Eternity (obtains 15% damage reduction effect, effective for any attack type)

This chapter is not over yet, please click on the next page to continue reading! The protection of the Golden Craftsman (the solid value is increased by 150,000, and the double resistance is increased by 55 points)]

(The Azshara Sewer Gate, which has been reinforced many times and blessed by the Well of Eternity, is very strong and difficult to destroy. The key in your hand is only applicable before the gate is reinforced.)

"Hey, it's so hard!"

It seems that Azshara's underground gate rune should have been reinforced during its heyday. No corners were cut, and the effect is excellent. It is ten times stronger than the gate of the mountain bunker!

But what does the last sentence of the guide note mean?

"Only applicable before the ground gate is reinforced?"

Zong Shen suddenly felt something bad, but logically speaking, such a strong underground gate should not be able to be opened by a rare key. However, he also remembered that the guide notes once said that this thing can open the gate.

If the two are combined, wouldn't the strategy module be self-contradictory?

Or is it that the key can open it, but it cannot open it completely?

Thinking of this, Zong Shen took out a bucket of water and rinsed the keyhole first. After confirming that there was no blockage, he inserted the rune key in his hand into the small keyhole.

With a slight twist and without much effort, the axle in the ground gate was activated, and there was an obscure and harsh sound of metal friction.

After all, it is inevitable that something that has been silent for more than 10,000 years will be a little obscure.

"Crack!"

After the sound of metal friction continued for a minute or two, there was suddenly a crisp sound.

However, the gate did not open, so it seemed that the rune key was indeed a bit weak.

The key was automatically ejected, and a light curtain was projected from the keyhole.

It is divided into a nine-square grid, all of which are the pattern of a big tree. It looks a bit like the nine-square grid password commonly seen on mobile phones on earth.

This step should be a preparatory measure after the ground gate is reinforced.

All the gates cannot be controlled by a rune key. If they fall into the hands of the devil, then the gates will be useless no matter how strong they are. Therefore, a second or even a third opening method must be set up.

Just when Zong Shen was about to ask about the strategy module, Vereesa slowly walked over from behind.

"Sir, let me try."

"I still have memories of what happened here."

"This is a warning issued by the great prophet of the stars and moon after receiving the revelation from the moon god."

"At that time, all elven cities had carried out backup plans to extend and strengthen their sewer systems, including underground gates, and had stocked up on supplies ten years in advance."

"Facts have proven that the prophecy is correct. It was a warning from God!"

Vereesa said softly with a look of reminiscence on her face.

She belongs to the high elves and believes in being the sun god rather than the moon god, but they are essentially a branch of the ancient night elves. In the endless continent, all elves are united together and are collectively called the elves.

Except for the half-elves living in the ocean, namely Naga.

Therefore, Vereesa also had a pious tone and attitude towards the Moon Goddess.

Her words contained a lot of information, which meant that a prophet had received revelations and warnings from the Moon God ten years before the dimensional invasion. Therefore, everyone made some preparations in advance...
To be continued...