Whether it's from the sky or underground, it's impossible to pass through; the "Train Tunnel" we encountered last time was a special case, and there's even less of a chance of heading to the red zone's Adventure Map.

"That."

Er Dan stood in place, pointing to a patch of withered yellow grass located at the border of the red zone area: "When I passed by here, I saw a patch of green shoots among the dead grass, which is quite amazing since it's deep winter now."

"I casually gave it a burst with my machine gun."

"Do you have more copper than you can use?"

"No, Master Mang, based on my experience, such anomalies are often the trigger conditions for a certain Adventure Map. Sure enough, after I fired the burst, a Teleportation Gate appeared in front of me, prompting that only the Train Captain is allowed inside to enter the Adventure Map."

"It's a puzzle-type Adventure Map."

"There are a total of three levels."

"Upon completing each level, you receive a reward, passing three levels grants three rewards and an ultimate grand prize, but if you fail at any level, the consequence is that you can no longer enter this Adventure Map, and a regional crisis will be born."

"I failed at the first level..."

"And then this scene unfolded."

"..."

Chen Mang's expression gradually grew complex as he gazed at the trains slaughtering monsters in the red zone. The high-level trains in the red zone were very formidable, each with their own techniques, and though the battles were fierce, they were one-sided slaughters without any real threat of being annihilated.

But...

As long as the war continues, resources will be heavily drained. If those trains find out Er Dan caused this, he might face permanent pursuit the next time he enters this area.

"They don't know you did this, do they?"

"They should know..."

Er Dan whispered: "Because after failing, a panel popped up in front of me saying that due to the 'Traveling Frog's failure, the 'Dusk Coast' in the red zone would face a major crisis event 'Monster Soul Revival', where monsters slain offer no rewards and revive infinitely fast, lasting for 48 hours."

Oh dear.

Chen Mang's lips twitched slightly, killing monsters without any rewards. That's pure loss with no profit, with them reviving infinitely fast, killing a monster means pure loss.

"Er Dan."

"Hmm?"

"When we go to the red zone, find a place to hide first. Wait until I develop to the point where I can dominate the red zone before showing yourself, otherwise, I'm afraid I can't protect you."

"What was the content of the first level?"

"There's no way to pass it."

Er Dan shook his head somewhat pessimistically: "It's a damn test from the Mechanical Civilization, requiring you to fill out a questionnaire, but all the questions are related to the Mechanical Civilization. For instance, the first question asks when the Mechanical Civilization was born."

"There are four options in total."

"How the hell could anyone know that."

"I just picked one at random, and then... failed. I chose C, 2932, at the time. I don't even know what calendar they used, or what year in which calendar."

"There are five questions in total, four multiple-choice questions, and one fill-in-the-blank."

"You have to get them all right to pass the first level."

"The first four multiple-choice questions aren't difficult..."

Chen Mang's eyes narrowed slightly. He had quite a few Train Orders, willing to keep building new trains to take turns attempting, eventually figuring out the correct answers. But... if each train's failure brings a major crisis event to the red zone, this red zone might very well be done for.

Let's give it a try first.

The next moment—

A Fixed Star test runner appeared, driving a level 1 train equipped with a heavy machine gun, slowly emerging from the Fixed Star's front, stopping near Chen Mang and the others.

Yes, the man sitting inside the train cabin is that burly man who was doing odd jobs before Doomsday.

He has almost become the designated test runner for the Fixed Star. For any risky task, this guy is always the first to volunteer, with the fastest promotion rate among all civilians, almost undisputed.

"Master Mang."

The burly man in the train cabin, with a resolute expression, got off the train and came to Chen Mang: "Please order!"

"Use the heavy machine gun on your train to sweep the green shoots among that withered grass, and you will succeed in entering an Adventure Map. Then, in the first multiple-choice question, rule out option C. If you get it right, continue trying the remaining three multiple-choice questions. If you fail, remember the wrong answer. If you guess everything correctly, remember the correct answers."

"Yes!"

The burly man nodded and returned to the train cabin.

...

Three minutes later.

"..."

Chen Mang silently stared at the red zone, now covered by dark clouds in the entire sky. Thick bolts of lightning struck the ground from time to time, some hitting trains, some hitting monsters, and others striking rocks and soil.

The power wasn't great.

But all the trains hit by the lightning inexplicably stalled instantly, starting to run away frantically.

"Master Mang."

The man who returned from the Adventure Map said somewhat guiltily: "I chose B for the first multiple-choice question, and right after I selected it, it told me I chose wrong and failed, then a panel popped up in front of me."

"It said due to the failure of 'Death and Life', the 'Dusk Coast' in the red zone would face a major crisis event 'Thunder Rolling in the Sky'. All firepower weapons of the trains hit by lightning would consume ten times more ammunition within one minute."

"It's fine."

Chen Mang shook his head. He indeed was fine, but the trains in the red zone didn't seem to be as fine, their escaping posture rather embarrassed: "Ai, call Li Shiji out from Neon City and have him take a look."

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