Da Liang, who didn't have too much research on the magic array, couldn't see the function of this hole in the entire magic array system.

However, since the magic array has been destroyed and stopped working, even if there is danger in this cave, it is limited.

Probably......

Anyway, Da Liang will never allow such a big hidden danger to exist near the fortress.

Whether it's to get the sulphur ore or to solve the possible crisis inside, you have to enter it first.

"Astro, Roar, Hurricane, you three are guarding the entrance to the cave. Whatever comes out of the cave, kill them at the first time. In the Land of the Dead, we have no allies for the time being. Monica was in charge of the construction and defense of the fortress. Julian and I went inside to check it out. ”

The heroes replied, "Yes, my lord! ”

Monica sits in the fortress, and the three frost dragons stand around the mouth of the cave.

Seeing that everything was arranged, Da Liang summoned three demon spirits, and then threw a ball of light into the hole.

Didn't see the monster exist.

At Da Liang's signal, Julian summoned a light shield and walked into the cave first.

The path ahead is illuminated by the white light emitted by the light shield.

Dry, hollow.

There was no danger, and Da Liang followed in.

The smell of sulphur is even more pungent.

There are obvious signs of artificial excavation throughout the tunnel, and the ground under your feet is very solid and flat, and you can see some raised rocks that have been cut off from the pavement.

The passage has also been expanded and reinforced, and it is like walking in a tunnel through a mountain. The pavement was flat and the walls were sturdy, as if to allow large creatures to pass through quickly.

Think of the necromantic bears and skeletal mammoths you see in battle.

Could it be that larger creatures can be summoned here? It's just that the teleportation array has destroyed the integrity of the entire magic circle, so this place is not functioning?

Looking at the size of this passage, Da Liang was a little suspicious that this was for summoning dragons.

The teleportation array fell on the buried bones, and happened to be stuck on a magic node, and Da Liang didn't know if he was unlucky or lucky.

Reminding Julian that there might be an undead dragon here, the two were more careful.

The passage kept going down, but the attack that Da Liang had imagined did not appear.

The cave at the back is no longer visible, and the peculiar fluorescent moss of the underground gradually appears and multiplies, providing enough light to see in the dark underground environment.

[Ding, you occupy a sulfur mine: a bonanza, with a maximum daily output of 2.5 units of sulfur and 0/50 of labor.] 】

A system prompt suddenly appears in Da Liang's tooltip bar, and after turning a corner, Da Liang sees the mine he is looking for.

Ahead is a large underground cavern, the walls of which are covered with golden veins of sulfur.

Like golden pythons winding around in the hole.

On these sulfur veins, there are magic arrays inlaid one after another.

Being able to capture the Brimstone Mine shows that there are no monsters guarding the mine.

And the role of this sulphur mine is already obvious.

This place is not prepared to summon some kind of super-large undead creatures, and the magic circle embedded in the sulfur vein is to directly convert the sulfur here into mana, providing energy for the summoning circle of the entire burial place.

The guy who built this magic circle is so talented.

Da Liang was also glad that he had destroyed the summoning circle in time, otherwise he would have been consumed with this sulfur bonanza.

Even if my brother sells out his family, he can't fight a mine.

In this way, it seems that this cave is to provide energy for the magic array, and if there are no monsters, you can safely and boldly mine it.

And just as Da Liang was about to return to the fortress to arrange for men to come in and dig up the sulfur, Julian pointed to the other side of the cave and said, "My lord, there is another cave over there, let's go and check it out for safety." ”

Following Julian's direction, Da Liang also saw a circular hole, the same size as the one he came in, seventeen or eighteen meters wide.

It's clear that it was also excavated.

The Wizards' Guild wouldn't dig such a large passage for no reason, there must be something else in the depths of the passage.

There is no room for sloppiness in the defense of the fortress.

Julian and Da Liang walked through the sulfur cavern and into the newly discovered large cavern.

And they hadn't gone far before they saw a large portal standing in front of them.

【One-Way Portal】

The teleportation array is a special existence, such a portal can only pass through one direction.

The portal that stood in front of the Great Bright Eyes filled the entire passage, glowing with silver light like a mirror that could not reflect the image, and circles of ripples appeared from the mirror from time to time.

This side should be the passable side of the one-way portal, and if you pass through it, you can reach the other side of the portal, but you can't go back.

What did the Wizards' Guild do with such a large one-way portal in this place?

It is important to know that one-way portals are much more complex than two-way portals. Such a one-way portal with a diameter of more than ten meters is definitely no less big than the super-large summoning magic array in the Buried Bone Land, and the energy consumption of blocking the entry of the other side is also very huge.

Da Liang suspected that the sulfur mine itself was the same super-rich mine as his crystal mine on Flying Dust Island, and as a result, in order to maintain the operation of this one-way portal, he forcibly reduced it to a rich mine of two units of sulfur per day.

This is still the output of the summoning circle when it is not running, and it is estimated that if the summoning circle is not destroyed, the output here should be infinitely close to 0.

A project that requires a super-bonanza is an unimaginably large sum.

It is estimated that when the Wizards Guild knows about the current situation here, it will definitely tear my brother's heart.

As for the role of the entire project, Da Liang has basically guessed it.

When the wizarding guild needs it, this large summoning magic array covering the entire burial bone land will continue to summon a large number of large high-level undead.

Then they should have a way to get these high-level undead to gather in the center of the magic circle, and then follow the passage through the brimstone mine and rush out of this one-way portal.

This excavated, expanded and leveled passage allows the undead to pass through quickly.

One can imagine what it would be like on the other side of the one-way teleportation array once this place is activated.

Have you ever seen a dam discharge?

The tide of high-level undead can sweep everything, and the people on the opposite side can only cut off from the source if they want to stop these undead.

The entire summoning magic array was buried in a place where the opposite creature didn't know the location.

And when they rushed here against the tide of the undead, they would find themselves facing a one-way teleportation array, a one-way teleportation array powered by a super rich mine, and it was definitely not an easy matter to destroy it.

If the Wizards' Guild activates here, it will be a catastrophe for those on the other side of the one-way teleportation array.

Scourge of the Dead!

Probably.