Riding in the carriage prepared by Mrs. Elise, Yasuo and Riven rushed to the Hulklond Plain.

Along the way, these two people who are not good at talking rarely communicate, and they chat only a handful of times. They obviously had a lot to say in their hearts, but Xiaofeng shook his head when he saw it.

When Yasuo had nothing to do, she would rather meditate and meditate, even if that would have improved his strength by little. Riven turned her eyes out the window,&nbp;&nbp;She dared not learn to meditate quietly like Yasuo. To this day, she still often had nightmares at that time. Once she closed her eyes, she would return to the heavy rainy valley night. The ghosts of many Ionian villagers and Noxus warriors made her feel restless.

After getting off the bus, Riven looked at this land that was even more barren than her hometown.

I don’t know if it’s because of the evening light, but the sky here looks dark and red. A depressed military flag was planted on the side of the road and was pecked by birds.

After coming to the arranged hotel, and after confirming that the doors and windows were closed, Riven took out a map and spread it on the table. Her rough fingers passed by the map, circling a flag in the southeast corner of the hill.

"The only thing Hulkrond deserves the power of the empire to invest, in addition to the unique crystal veins, there is also a large amount of saltpeter buried under the hills. Saltpeter is one of the important raw materials for making black gunpowder. Black gunpowder has helped the empire to capture cities and land countless times, so it is highly valued."

Riven explained the situation to Yasuo. No matter what, she is also a native Noxusian. These basic common sense will not be forgotten just because she has already returned to the field.

"The locals are very clear about the value of saltpeter. They do not allow the Imperial soldiers to dig out their treasures at no cost. So they processed saltpeter into black gunpowder and exploded the berths that the legion was hastily built. They knew that their troops were not enough to compete with several legions, so they dug the mine tunnels in all directions, relying on tunnel warfare to restrain the legion soldiers, and hurt the generals' brains."

However, Yasuo Riven did not come for saltpeter this time.&nbp;&nbp;They came to get the crystals that Zell needed.&nbp;&nbp;&nbp;The minerals were in the hands of the Noxus, but there was a black gunpowder near the mine, which connected the two together.

"There are at least five Noxus battle groups stationed on this hilly land. We have to figure out which battle groups are guarding around the mine."

The Noxus battle group is different from the traditional army. For cultural inclusion, each battle group is led by its own leader, marshal and captain, with its own unique culture, hierarchy and combat preferences. Therefore, their components are very complex. You can see grenades in this battle group, and dragon lizard rafters or battlefield priests in another battle group. The only kind of troops that will not be missing is the war stonemason who exists as scouts and engineers at the same time.

The battle groups can form a larger battle group and be responsible for specific on-site divisions. They may be assigned to frontline commandos, heavy infantry, scouts, assassins or cavalry as long as they can match their skills. If they do not properly explore the distribution of troops of the hostile legion before the battle, they will most likely suffer a great loss.

"Leave it to me about investigating information." Riven felt that her years of experience in joining the army would come in handy. It was much better than Yasuo rushing up without knowing anything and then messing up the plan.

Yasuo had no objection to Riven's suggestion. After all, it would be safe to do it this time.

In the middle of the night, Riven came back and shared the information she had collected with Yasuo. She was panting, and her forehead was sweating hotly in the night when the cold wind whistled.

The temporary camp where they are located is under a curfew, and patrolling troops are everywhere outside.&nbp;&nbp;&nbp;It took a lot of effort to get around them,&nbp;&nbp;&nbp;&nbp;The sweat was all shed due to tension.

"I went to take a look. There was only one Red Blade Team stationed near the Black Powder Processing Factory. Their leader was a Shurima people, and the style of the entire team also tended to be close-killing, which is good news for us. However, it is very close to the processing factory, so it cannot be ruled out that they will not use Black Powder to deal with us."

"In addition, I also found that there were knocking sounds in the mine cave, and miners were mining day and night, which was a bit troublesome."

If someone is in the mine, they will not be able to sneak in. They will take away the ready-made ore and run away without knowing it. They will probably have to start an unparalleled infiltration.

Listening to Riven's information, Yasuo nodded slightly and then pondered.

"Maybe...we can start from the processing plant."

"You mean, first make a move at the processing plant and lead everyone from the mine cave, and then we will go in and get the ore?"

"The more the movement, the better."

"Then you will detonate the black gunpowder in the processing factory. The noise is definitely big enough, and then you will blame the local tunnel guy."

"That's what it means."

The two hit it off and decided to do this. At this moment, Zer, who was sleeping, knew that two serious people could come up with such a sinister plan. He probably had his eyelids rolled to the sky.

Without further ado, the two of them slipped out of the gathering place that night, avoided the patrol army along the way, and came to the periphery of the mine.

In order to prevent local people from raids, the Noxus set up a circle of barbed wire around the mine cave, and there was a sentry tower at the entrance, with a watchman standing on it.

The two of them bypassed the lighted place and looked into the mine through the barbed wire.

As Riven said, wall lights were hung at the entrance of the mine, emitting a stable warm yellow light, and the sound of iron picks hitting the ore was constantly heard. There were also several mine cars at the entrance, but they were filled with useless rocks.

They can directly kill into the mine, as long as they are fast enough to escape in time before being blocked. However, when they are not sure about the distribution of the tunnels inside the mine, they don’t know how much time it will take to collect enough ore. Once the time is delayed for a long time, even if the troops surrounding them cannot defeat them, they can choose to burn or collapse the mine to keep them in forever.

"Let's go to the factory to have a look."

The black gunpowder processing plant is less than two kilometers away from the mine cave. Before getting close, you can smell the wind with a strong smell of sulfur. Noxus has a huge demand for black gunpowder, so this processing plant is producing high-quality black gunpowder day and night like any Noxus furnace, and quickly puts it into the battlefields everywhere through well-connected lanes.

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Chapter completed!