"Pliers."

The old cat crouched in the doorway, his brow furrowed, and stretched out his paws like a surgeon.

Nurse Tang squatted beside it and slapped the pliers on the old cat's paws.

"This ...... What exactly? Tang Yue asked in a low voice, "A postcard?" An envelope? Or an advertising flyer? Which planet's certification business is so developed and arrogant that it has been done on Mars? ”

There were no Martians in the airlock, but there was a flat white card on the floor, like a postcard and an envelope, lying quietly on the side of the threshold, which was as terrible as an atomic bomb in the eyes of the old cat.

It clearly doesn't belong to anyone inside Kunlun Station.

"It doesn't have to be a certificate, have you ever seen a leaflet for a certificate? They all printed their mobile phone numbers directly on the wall, judging from the behavior of knocking and running, it may be a pornographic advertisement that plugs the crack of the door. ”

The old cat carefully pinched up the suspicious card with pliers and turned it over, there was no eye-catching "certificate" on the other side, and there was no female green-skinned alien who was disheveled and scratching her head, which made Tang Yue and the old cat breathe a sigh of relief at the same time, human civilization is in contact with the outside world for the first time, if it is a small advertisement stuffed in the crack of the door, it will be too frightening, and the arrival of the Star Destroyer in space is more logical.

"It's an envelope." Tang Yue said.

The old cat nodded, and after careful observation, this is indeed an envelope, but there is no handwriting, and there is no stamp, in this era, the envelope is already a very rare antique, because no one will use such a primitive way to contact the letter, only the post office still retains the business of sending letters.

"Specimen bag." The old cat stretched out its paws again.

Tang Yue handed it the plastic specimen bag.

The old cat stuffed the envelope into the specimen bag and sealed it, and then put the bag into the box, treating suspicious objects of completely unknown origin, the old cat's attitude was quite cautious, it put on a spacesuit for a robot cat, but unfortunately there was no body armor in Kunlun Station, if there was one, Tang Yue believed that it would also wear it.

"No one is allowed to have direct contact with it until it is confirmed that it is completely safe." "You have to keep a safe distance. ”

Tang Yue nodded.

Now he is alone in Kunlun Station, where is anyone coming from.

The old cat went out with the specimen box and went straight into the garage, where he had to carefully analyze what the envelope was all about, and the instruments in the Martian Stray Dog Experiment Module might come in handy.

Tang Yue also followed—the old cat originally asked him to stay away as much as possible, because no one knew what kind of material this envelope was, it might be carrying a deadly virus, it might have high radiation, and it might even be made of pure antimatter? An antimatter envelope with a mass of more than a dozen grams isolated from the outside world, once it comes into contact with any matter in this universe, then the mass will be completely converted into energy, and the power of this envelope explosion will be equivalent to ten Hiroshima mushroom bombs.

So Tang Yue didn't run away.

That's a.

If the opposing civilization really has the ability to seal up the antimatter at will and make it stable, then it is just a snap of the fingers to kill itself.

The old cat locked himself in the geological experiment cabin, and before closing the door, it turned around for the last time to warn Tang Yue that the next work could cause devastating consequences, and if he didn't want to die, he would try to stay away, but Tang Yue couldn't get rid of it, and the old cat was helpless in the end, so he could only let him go.

The hatch of the geological experiment cabin was closed, the lights were on, and the old cat was fully armed and put into work, and Tang Yue leaned back against the garage and watched the shadow of the old cat.

The old cat tinkered for more than three hours, no easier than a surgical operation in terms of duration, and finally pushed open the hatch and jumped down, carrying the helmet of the cabin suit in one paw and the envelope in the other.

Tang Yue sat outside and waited for more than two hours, and when he saw the old cat coming out, he hurriedly stepped up, "How is the situation?" ”

The old cat pushed him.

"Go back and talk about it."

·

·

·

Lao Mao and Tang Yue were each holding a flashlight, like two archaeologists studying cultural relics.

The envelope was served on a plate, and the sealed specimen box and plastic bag had been removed and placed on the table, unusual, ordinary.

"What kind of material is it?" Tang Yue asked, "What's the origin?" ”

"Looking at the results of the analysis spectrum, its main components are carbon, hydrogen and oxygen, of which hydrogen is the most, and carbon and oxygen are about the same." The old cat replied, "There are also very small amounts of sodium ions and sulfur. ”

"Speak human words."

"Sugar." "Its main material is sugar, which is a carbohydrate. ”

"Sugar?" Tang Yue was taken aback, and subconsciously asked, "You mean this thing can be eaten?" ”

"What to eat? Why do you have a mind full of eating? The old cat's eyes squinted, "This is cellulose, a class of polysaccharides, which is the most important component of plant xylem. In layman's terms......"

The old cat pulled out a piece of used scratch paper from under the table, shook it, and slapped it on the edge of the envelope.

"These two things, the composition is exactly the same, there is almost no difference, this envelope is the most common and ordinary paper envelope on the earth, there is no virus, no radioactivity, and it is not any antimatter."

Tang Yue was slightly surprised.

He had just experienced the second bizarre encounter in human history – the most bizarre of all, of course, the evaporation of the earth.

So Tang Yue was mentally prepared, no matter how weird and crazy this thing was, he would not be surprised, but the old cat told him that this was just a very ordinary envelope, no different from the most common paper envelopes on the earth.

"Exactly like a paper envelope on Earth?"

"Yes." The old cat nodded.

He was stunned for a moment, then jumped up and knocked over the chair.

"Tang Yue?"

Tang Yue didn't pay attention to the old cat, he opened the airlock cabin door with force, and stumbled out.

"Tang Yue! Tang Yue! The old cat grabbed the envelope and chased it out.

Tang Yue put on his heavy Mingguang armor, pushed open the hatch, and stood panting in front of the door of Kunlun Station, facing the pitch-black wasteland and the bright starry sky on the horizon.

"Hey ——!"

Tang Yue took a deep breath, and then yelled.

"You're coming out——! You're coming out——! ”

"I know you're here——! You're coming out——! You're fucking coming out for me——!! ”

Tang Yue shouted hoarsely.

"You're coming out——! I've found you! Don't hide anymore! Come out——! I beg you...... I beg you to come out......"

"Ask for ...... Please...... Please......"

The old cat stood in the airlock room, looking at the man shouting with all his might, trying to transmit his voice to the world, but the roar could not spread far before it dissipated in the thin and cold air, Tang Yue slowly bent down, his face was flushed, gasping for breath, and sat on the threshold of the cabin door.

"Please, please save me......"

Tang Yue muttered to himself, tears falling down his eyes.

The old cat sighed, walked up from behind, patted him on the shoulder, and handed the envelope over.

Tang Yue turned his head.

"Let's take it apart...... There is something in the envelope, which should be for you. ”