It's reasonable for me to have a two-way foil for a second-level civilization, right?

Soon, Joey's response reached his ears: "It has stopped!"

Andrew closed his eyes slightly, and the scenes of the original training quickly flashed through his mind.

After recalling the operation process, he picked up tools and slowly disassembled the air circulation equipment.

When he saw the carbon dioxide absorber, he couldn't help but froze.

The surface of the carbon dioxide absorber is covered with crimson Martian dust.

"The cause of the failure has been found."

Andrew said softly: "It is estimated that NASA's sealing work is not done well, and the carbon dioxide absorber is full of Martian dust."

"Tsk!" Bruno smacked his lips over the radio, "I said NASA is unreliable!"

"What should we do now?"

"We don't even know where the seal is going wrong!"

Andrew’s eyes were full of helplessness, and he sighed deeply.

"What else can I do, install the replacement equipment today, and wait for Houston's response."

With that said, Andrew installed a spare carbon dioxide absorber in it.

After restoring all the equipment, Andrew said again: "Joy, start the air circulation equipment and see if it works normally."

After a few minutes.

No response.

"Joy?"

The corners of Andrew's eyes twitched slightly, and he said again: "Joy, are you there?"

The next moment, a sound of panic rang through the earphones in the helmet!

"Damn it...Andrew, the air circulation still doesn't work!!"

"It's still the original problem! The carbon dioxide absorber is wrong!"

Andrew's heart sank.

Could it be that Martian dust has invaded the interior of the device?

He took a deep breath and said calmly, "Joy, don't panic."

"Maybe this replacement device is broken too, I'll try another one."

……

With the experience just now, Andrew's replacement action was obviously much faster this time.

After half an hour.

"Joy, start the air circulation equipment again!"

A few seconds later, Joey came with a crying voice.

"Andrew, it still doesn't work!"

"Carbon dioxide absorber failure!"

Hearing Joey's crying words, Andrew's heart sank lower and lower in the water like a stone.

With slightly trembling hands, Andrew took the air circulation device apart again.

This time, he raised the flashlight and carefully checked the malfunction.

When a hidden gap and a red rock the size of a fist appeared in front of his eyes, Andrew held his breath for an instant.

It’s over.

These two words flashed through his mind.

"You two, something may have happened to us."

Andrew took a deep breath and said solemnly.

Chapter 123 Misfortunes Never Come Alone

Andrew's voice came to the ears of two teammates via the radio.

Bruno and Joey were slightly suffocated, and a trace of panic flashed in their eyes.

"Andrew? What's going on?!"

There was a trill in Bruno's voice.

Andrew stood up slowly, shaking his head bitterly.

"A Martian rock disrupted air circulation equipment."

"From what I saw, there was a gap more than ten centimeters long..."

"It's probably because we didn't pay attention when we launched the Mars capsule, or there was something wrong with NASA's design in this regard."

There was silence on the radio channel.

Bruno on the side trembled slightly, and suddenly raised his head to look at Andrew in front of him.

Through the glass mask, Andrew clearly saw Bruno's pale face and bloodless and trembling lips.

The next moment, Bruno stretched out his hand, grabbed Andrew's arm, and growled in horror.

"Didn't NASA equip us with two parts for the air circulation device?!"

"Why don't we put the damaged place..."

Andrew shook his head, and interrupted Bruno's question directly.

"While I'd love to say it's replaceable, the reality is ... that the gap was in the base part of the air circulation unit and unless we took it out and replaced it in its entirety, there was no way to fix the failure."

"NASA should not have considered the problems we encountered. They are equipped with some important removable parts. For the basic parts that cannot be disassembled, we have not replaced the equipment."

As he spoke, a trace of bitterness appeared on Andrew's face.

While carefully restoring the parts to their original state, he sighed and said, "Get ready to contact NASA."

"Guys, our journey to Mars may be over here."

……

Earth.

3:15 a.m. U.S. time.

Houston Ground Command Center.

"Pathfinder called Houston, Pathfinder called Houston."

In the quiet command center, there suddenly sounded a sound with a strong electric current.

"We... ran into some trouble."

"..."

Hearing the message from the radio, Professor Chris, who was drowsy, shivered suddenly.

His lips parted slightly, and a look of disbelief flashed in his eyes.

Before he had time to think about it, he grabbed the phone beside him and called Director Moulton.

……

More than two hours later.

The meeting room of the White House.

Albert sat on the head seat of the conference table with a gloomy expression, stretched out his hand and rubbed his tired face.

"So, our Pathfinder program is going to be interrupted?"

Chief Moulton nodded with a gloomy expression: "That's right."

"The Mars module after the air circulation equipment is damaged is no longer suitable for habitation."

"In order to ensure the safety of the three astronauts, I have ordered them to enter the return capsule."

As he said that, Moulton raised his wrist and looked at his watch: "If everything is normal, they should have taken off by now."

As soon as the words fell, there was a rapid knock on the door.

Albert frowned slightly, and turned to look at the door of the conference room.

"what happened?"

"Is anyone interrupting such an important meeting?"

Moulton's eyes moved slightly, he stood up from his chair, and said in a low voice, "Your Excellency, perhaps there is good news from the Houston Ground Command Center."

Albert was silent for a moment, nodded solemnly, and squeezed out a slightly dull response from his throat: "Let him in."

After getting permission, Moulton hurriedly turned and left his seat, and opened the door of the meeting room with a faint smile on his lips.

"Mo... Director Moulton, something happened in the reentry capsule!"

……

Mars.

After receiving the return order, the three astronauts brought some important supplies and entered the return capsule one by one.

After fastening the seat belt, Bruno's face faintly flashed with excitement.

"To tell you the truth, I even want to thank that Rausch air circulation device." Bruno rubbed his hands lightly, and said in a low voice, "If it wasn't for it, we would have stayed on this damned Mars for over a month!"

Andrew looked at his teammates with a strange expression on his face.

"What? Don't you think so?" Bruno obviously noticed Andrew's gaze.

Andrew coughed lightly, and his expression became more and more strange: "That's the way it is...but you may have forgotten one thing."

"There are audio and video recording equipment in this return capsule."

Bruno: "..."

"Ahem!" Bruno coughed hard twice, then changed the subject with a smirk, "Captain, should we get ready to go?"

The corners of Andrew's mouth twitched, and he checked helplessly.

After confirming that there were no mistakes, he took a deep breath, reached out and pressed a few buttons on the console.

"Attention, I lit a fire!"

Hearing Andrew's reminder, the two teammates immediately restrained their smiles and prepared to take off solemnly.

"3!"

"2!"

"1! Ignite!"

A shock came from the bottom of my feet.

Just when everyone was preparing to bear the coming force, the vibration suddenly disappeared.

It was quiet in the return cabin.

"Team...Captain?" Joey's voice sounded on the radio, "Are you sure you want to light the fire?"

Andrew froze for a moment, a trace of doubt flashed in his eyes.

Did he not press it just now?

Should it be pressed?

But why is there no movement?

There was great doubt in Andrew's small eyes.

"I... I press it again?"

With that said, Andrew reached out to press the engine start button in front of him again.

Another few seconds later.

"..."