When Xiaoyu came back with a large bag of supper, Meng Xiaofei was still studying the box.

"Can't you open it? It doesn't matter, let's eat something first. I've found a lot of professionals who can't open it, and I've been mentally prepared for a long time. Xiaoyu put the supper neatly on the table. Basically, Meng Xiaofei likes to eat, including skewers, saury, oysters and so on.

"How do you know I love these?" Meng Xiaofei was stunned at first, and then asked curiously.

"Huh? Do you love these too? Sorry, I didn't know what you like to eat, so I bought it to my liking. I didn't expect our tastes to be similar. ”

"Oh." Meng Xiaofei didn't know how to answer.

"Come on, eat it while it's hot." Xiaoyu smiled sweetly at him, which made Meng Xiaofei's whole body crispy, except for his mother, no woman in his life had ever smiled at him like this, let alone a super beauty. He finally knew why this high school classmate in front of him was so popular, it turned out that he was not only beautiful, but also very gentle and kind.

"You eat first, this lock is a little difficult to open, but give me another hour, I'm sure to open it."

"What did you say?" Xiaoyu looked at him incredulously, "You're sure you can open it." ”

"Well, do you know what the hardest lock in the world is to open?" Meng Xiaofei asked while fiddling.

"Heartlock? Or is it the "Golden Lock" played by Fan Bingbing? ”

"Uh...... Well, you win. ”

"Isn't it? Brain teasers all say so. ”

"Hehe, some people say that the most difficult lock in the world is Israel's "invincible lock", and some people say that it is Italy's "Tianxin lock", but in fact, it is not! It is the Luban lock of our country, also known as the Kongming lock. This kind of lock is widely spread in ancient China's folk, whether it is invented by Zhuge Liang or invented by Lu Ban is impossible to verify, it is completely supported by the connection of its own structure, just like a piece of paper folded in half can stand up, showing a seemingly simple, but condensed extraordinary wisdom. The concave and convex parts (i.e., mortise and tenon structures) inside this three-dimensional inserting appliance are very ingeniously meshed, and most of them are wooden structures. The most famous is the nine Luban locks, nine kinds of tenon to meet the different numbers at the same time to achieve four occlusal structures, it is indeed very difficult! The box in front of me is somewhat similar to the structure of the Luban lock, it is different from ordinary locks, there is no lock cylinder, spring, marble, deadbolt, etc., but completely relies on some combination! The content of what Meng Xiaofei said was very profound, and I don't know if Xiao Yu could understand it, but after he said these words, Xiao Yu also had a lot of confidence in him in her heart, and she believed that Meng Xiaofei would definitely be able to open the box.

Meng Xiaofei fiddled for nearly half an hour, and then he suddenly stopped.

"Let's eat first." Meng Xiaofei said.

"What's wrong? Is there something wrong with it? Xiao Yu asked with concern.

"No, it's just one step away from opening, and I don't know what's going to be in there, so ...... Let's eat first. Meng Xiaofei didn't care about any gentlemanly demeanor or non-gentlemanly demeanor, in the face of his favorite food, he would not be hypocritical at all, and he had nothing to eat except instant noodles so far, he was indeed very hungry.

Three times and five divided by two, the wind and clouds are swept away, gobbling up, all the adjectives can't show the spectacular scene when Meng Xiaofei is eating.

"You...... No...... I haven't eaten in a few days, have you? Is it enough? If it's not enough, I'll buy some more? Xiaoyu was frightened by this situation, and there were no such "unkind" friends around her.

"Enough, enough. Actually, I'm not very hungry. ”

Xiaoyu smiled helplessly, isn't he very hungry to eat like this? It's a monster that has just come out of hibernation! But she didn't say it, just laughed and sighed. Fifteen minutes later, the two of them cleaned up the "mess" on the table, and their eyes were fixed on the cigarette-sized box.

The two tacitly agreed that they didn't make a sound, and the whole room was so quiet that you could hear each other's heartbeats.

Meng Xiaofei inserted the thimble into the small hole of the box, took a deep breath, and gently pushed his fingers up, only to hear a click, and the box opened......

"What is this?" Xiao Yu exclaimed.

"I don't know!" In the center of the box, there was a purple sphere spinning rapidly, and the sphere was suspended in the center of the box, with a purple halo next to it, or, most likely, the entire sphere was just a beam of light......

Xiao Yu slowly approached the contents of the box.

"Don't touch it!" Meng Xiaofei shouted, "This may be an alien energy body!" ”

Xiao Yu subconsciously took his hand back, "Alien energy body? Why are you so sure there are aliens? ”

Meng Xiaofei naturally couldn't say that he had seen it with his own eyes, but he was really hard to answer Xiaoyu's question, "Don't you also believe that your grandfather's research has something to do with aliens?" ”

Xiao Yu's expression changed slightly, "Actually, I believe in my grandfather, just because I trust him subjectively!" My cousin is the only person who believes in the entire family and doesn't doubt my grandfather's words at all...... I'm ashamed to say that, objectively speaking, I really don't really accept the idea of aliens, I'm just subjectively standing with my grandfather and cousin, that's all...... After my cousin's disappearance, I read a lot of related books in this room alone, and from a scientific point of view, in fact, there are many ways that the theory of aliens does not exist. I don't know if you've ever heard of "Elf Flash"? ”

Meng Xiaofei didn't eat so much A4 paper for nothing, of course he knew, "Well, a natural phenomenon caused by thunderstorms in the high atmosphere, usually occurs in the ocean. In December 2009, a spectacular spiral light appeared over northern Norway, releasing a huge "spiral" of greenish-blue beams in the center, which illuminated the entire sky and produced a ripple effect of raindrops. Those who saw the sight thought it might be a UFO from an alien planet coming to Earth. Later, it was considered by experts to be the condensation end of an ordinary jet aircraft, but the condensation ended suspended in the air for a longer time. In addition, Venus's halos, airplanes, balloons, peculiar cloud structures, etc., can cause optical illusions, and I do not rule out the existence of these possibilities. But...... Have you ever thought that whether it is "weird lightning" or "elf flashes", these short-lived lightning phenomena are called "transient luminescence events", which usually occur at the top of the atmosphere during thunderstorms, but there are still many mysteries on the exact area where they appear? And will this phenomenon, which lasts no more than 1 millisecond, be noticed with the naked eye? Are all the UFO sightings in thunderstorms? Why do halos and glowing discs always appear before the elves flash? ”

Xiaoyu was stunned by Meng Xiaofei's series of questions, how could she answer these things that even experts couldn't explain. Of course, it is impossible for her to know what the premise of Meng Xiaofei is so sure that there are aliens......