Brian's eyes flashed, "And then you let people blow up the higher entrance of the Shadow Moon Valley and let a huge amount of water pour into the Shadow Moon Valley?"

Duke smiled.

Everything was calculated by the system, and after scanning the topographic map of the entire Shadow Moon Valley, the system elf rarely prompted Duke to ask if he wanted to come to 'Guan Second Brother Flooded Seventh Army'?

Duke decisively said 'yes'.

When I came to Shadow Moon Valley as a player before the crossing, I didn't think that Shadow Moon Valley was bad, at most it was an oppressive sky, a slightly disgusting atmosphere and color rendering.

When I really came to Shadow Moon Valley, I deeply realized that this place is really not a place for people.

The black earth, eroded by evil energy, was filled with a dry and smelly wind, and the air was filled with a disgusting smell. There is no clean water source to be found. Fly all day on a griffin and see a lake of evil energy glowing green.

The bright green color is easily reminiscent of nuclear cola, radiation sickness, and the like.

Duke was extremely suspicious that after three months in such a place, any normal person would become demonic and become inhuman.

The dwarves who tried to build the Hammer Fortress before had to dig deep wells, then extract those muddy things, forcibly filter them, and then pour large bottles of Shattrath holy water to neutralize them, so that they dared to drink.

The construction of a castle, even if it is a mechanized operation, is heavy physical labor, and water is indispensable, otherwise people will die.

Anyway, to clean up the scattered demons, Duke simply flooded the entire western half of Shadowmoon Valley.

Looking down from the airship, this sea-like scenery is not endless, but it has a more shocking effect.

The Sky Fleet had entered the Shadow Moon Valley less than twenty kilometers, and geographically, they had just entered through the narrowest funnel-shaped entrance on the ground.

If you can barely see the end of the waterline when the waterline comes from the west, the flat area from west to east becomes larger and larger with the basin-like structure of the Shadow Moon Valley. When the waves push through, they form a long arc that is so long that you can barely see the edges.

It is only in its north and south that the end can be barely seen. Because of the large amount of mist of evil energy shrouded in the sky above Shadow Moon Valley, the light was quite poor, and even if you looked through it with a telescope, you could only see undulating faint shadows.

Knowing that it was the mountain line that surrounded the entire Shadow Moon Valley, there was still a sense of trance at the junction of the sea and the void, as if it was just the dark black oil paint under the painter's brush.

Underneath the outline of the long mountain range from north to south is a muddy lake with a little green. It's not as far as the eye can see, but it's nice to wash away all the garbage.

The fleet continued to move forward, and it took more than an hour to come to the site of the Brute Hammer Fortress, which had been abandoned before, which was a typical hill, although not too high, but more than a hundred meters from the plane of the valley floor.

The corpses that were too late to be snatched back have been devoured by wild beasts to the point that there are not a few bones left. The remnants of the ruined city walls still bear the claw prints of demons.

Only now everything is different.

Aren't you awesome at hellfire? Do you have the ability to evaporate this huge lake like a sea?

Cerberus, aren't you very fast, do you have the ability to accelerate from zero to 100 kilometers in the water in 3 seconds?

Although the site of the Brute Hammer Fortress in the Southern Mountains now looks like an isolated island in the middle of the ocean, the Burning Legion, which is only skilled in land and air combat, cannot pass through this vast and vast lake.

Coming down from the flying battleship, Mark Dooku and his men stood on the edge of this 'peninsula', looking extremely relaxed.

Brian beckoned to his men: "Little cubs, hurry up and get to work! I want to see a rudimentary beachhead blocking position with anti-aircraft fire in half an hour." ”

Kudran* Brute Hammer disarmed his griffon king, Scarley, and flew from Windranger Fortress for three hours, leaving even the griffon king a little tired, let alone the other griffons.

"Yo, Duke, can't we ask your Storm Naga to control the waters? ”

Duke shook his head and pointed to the fluorescent green water: "You swim in it every day, if you don't have the Holy Light to help you expel the evil energy in your body, I don't think you will become a demon." ”

If it weren't for the abundance of evil in the water, Duke would have called Naga to defend himself, after all, the demons of the Burning Legion are almost all-terrain blasting creatures.

Many demons can breathe better, and they can't breathe okay.

Duke had seen the record: for the past 25,000 years, the Burning Legion had been able to conquer and destroy even the gaseous creatures of the gaseous planets, let alone a small water attack.

This is merely an obstacle, not an insurmountable barrier.

Of course, small Naga troops are still prepared.

There is a thousand-strong elite Naga team on the transport ship, and if the pressure on the front line is too great, Duke will join this Naga team. It's a big deal to bathe Naga with the diluted holy water of Shattrath City.

It's just that for three days, there is no danger or danger. It is true that there are demons that have surfaced like the Loch Ness Monster, and there aren't many guys who actually attack the fortress in the building.

It's more of the instinct of the low-level demons that drives the scattered demons to break into the fortress's defensive circle.

It doesn't come irregularly, sometimes one or two Cerberus come to deliver food, and sometimes a whole demon guard team does come.

This made the defenders extremely painful, and they could only arrange as many troops as possible, divided into four teams, rotating every two hours, and placing no less than 3,000 defenders in the shore positions each time.

For three days, even if they ran to stand in a military posture every six hours for two hours, the morale of the troops was obviously low. After all, no one knows how many of them followed after the first demon emerged from the water.

It's not easy to send Naga scouts, because there is a lot of green evil energy in the water, plus the water is turbid, the scope of exploration is quite limited, and there are also things where Naga can't come back after being killed.

"Well, that's forcing me to make a big move. Duke sighed.

Early in the morning of the fourth day. On the makeshift dock, everyone saw a new machine with a strange appearance, stretching some parts into the water.

Standing in front of the machine, Duke proudly announced to a group of dwarves and gnome craftsmen and scientists:

"Hello everyone, welcome to the latest masterpiece of Marcus Future Technology Co., Ltd. - underwater sonar system. Sonar is an electronic device that uses the propagation characteristics of sound waves under water to complete underwater detection and communication tasks through electroacoustic conversion and information processing. Our new passive product belongs to the category of acoustic positioning. By listening to the noise in the water, you can roughly determine how many enemies are coming under the water and what size they are. ”13110