The other party was a male player with talismans covered all over his body. When he saw Chen Bei coming over, he raised his hand and gestured twice.

Chen Bei walked closer and asked, "Where's the box?"

The male player asked back, "Where's the 9 of Spades?"

So Chen Bei took out the 9 of Spades as a token of sincerity in exchange.

The other party immediately took out a box from his backpack.

This puzzle box is thirty centimeters square, a standard cube with six sides in total.

There is a knob on each side similar to that of a safe.

There are several scales around the knob, and the scales on each side are different.

There is a pointer on the knob that can clearly point to a specific scale.

Chen Bei didn't waste any time and directly handed the playing cards to the other party, then took the puzzle box.

The entire puzzle box is made of metal and feels heavy in the hand.

The male player happily put away the cards and didn't leave in a hurry. He said, "I tried to dismantle it violently, but it didn't work. The box doesn't take damage. There are a lot of patterns and words on it, which makes people feel overwhelmed. I'm not good at these. It depends on your ability."

Chen Bei didn't say anything, but concentrated on studying the puzzle box in his hand.

On one side are the twelve zodiac signs, corresponding to the twelve scales: rat, ox, tiger, rabbit...

One side features various daily necessities patterns, including hats, umbrellas, brooms, wooden combs, etc.

On one side are various book titles, all of which are famous works, including A Dream of Red Mansions, War and Peace, Les Miserables, One Hundred Years of Solitude, The Count of Monte Cristo, etc.

一面是各种分子式，有H2、O2、CO2、H2O、CH4等等。

On one side are various hieroglyphs, which are relatively basic, such as flames. Even if you don't understand hieroglyphs, you can guess the general idea just by the pictures.

One side was Morse code, long and short. This was Chen Bei's blind spot and he didn't recognize it at all.

Six sides and so many patterns and words can be confusing at first glance.

"How about it, any ideas?" asked the male player next to him.

"Not so fast...you can go now." Chen Bei said.

"Okay. Then study it yourself. When you open it, remember to tell me the answer. Satisfy my curiosity."

"Ah."

Chen Bei responded casually and the other party left on his own.

He was left alone to study the puzzle box, looking at each side over and over again, twisting the knob from time to time.

Time passes by little by little, and when the time is up, the puzzle box will automatically disappear.

Chen Bei pondered for a long time, and suddenly a light bulb went off in his head, and he had a breakthrough idea.

There seems to be something in common in the contents of these six aspects.

"There is a word for 'rain' in hieroglyphics, there is H2O representing water in the molecular formula, and there is an umbrella in daily necessities!"

"This can't be a coincidence! The answer should be rain. The scales on each side should be related to the word rain!"

Chen Bei suddenly understood, and immediately started twisting the knobs, turning the three knobs to the corresponding scales.

There are three sides left.

"Which of the twelve zodiac animals is related to rain...rain...clouds and rain? The dragon?"

Chen Bei turned the knob of the twelve zodiac signs to the dragon.

"Among these famous works, there must be something about rain. Rain...Victor Hugo?"

Chen Bei thought of the answer again and turned the knob to the book "Les Miserables".

Now there is only the last side left.

Chen Bei only knew that this was Morse code, but he didn't know its specific meaning.

But there’s no need to know.

As long as you have clarified the other five sides, there is only one left, so just try them one by one.

Anyway, this box has no trial and error cost, so you can try it at will.

Chen Bei twisted the knob to align it with different Morse codes.

Until a clicking sound came from inside the box!

The entire box automatically unlocked and opened, revealing a card quietly inside.

Chen Bei took it out.

Long-term effect card: This card can be retained for a long time in this game and will not be automatically recycled until the end of the game.

Name: Give and Take

Effect: Discard up to 5 playing cards and receive corresponding new cards. This effect can be applied to all playing cards and can be used outside the dormitory.

Restrictions: This function can only be used once per round of the game.

“I got the treasure!”

Chen Bei took a look and immediately realized that he had made a significant gain, so he quickly put the cards away.

Other effect cards can only take effect within one round and will become invalid after the expiration date.

This card can be used throughout the entire game and once in each round.

The effect is also very powerful, and you can discard cards for exchange.

The normal discard feature has two restrictions.

First, you can only change the initial hand.

Second, you can only discard or exchange cards in the dormitory.

This effect card can break the restrictions and is very practical.

Chen Bei didn't expect that the benefits of solving this puzzle box would be so great.

It is no exaggeration to say that this effect card is enough to affect his entire subsequent game.

The male player who had just traded with Chen Bei sent him a private message asking him if he had solved it.

Chen Bei told the other party the unlocking method, but concealed the benefits he gained from it, and only said that he got two playing cards.

The other party is just curious about the specific answer and doesn't care what's inside.

[So that's what's going on. Why didn't I think of that before... You're awesome.]

After the other party replied this, he remained silent.

Chen Bei was in a good mood. He looked at the time and saw that there were still more than ten minutes left before the end of the first stage of the third round.

In this short period of time, whether you can find the playing cards depends on luck.

Chen Bei continued to look around while keeping an eye on the developments of the card-exchanging party.

The card-changing party is hosted by Han Wang alone. He is the only authority and he can hold it wherever he says.

Other players have also tried to hold similar events, but they were all small-scale events involving only a few people and did not achieve success.

Now players have recognized the brand of the King of Heroes.

Chen Bei searched around and found a poker card in a roadside vending machine.

The vending machine was broken and the lid was opened randomly.

The poker card I got this time was a 2 of hearts.

Chen Bei thought about it in his mind.

He still has two chances to change cards.

This is a chance for every player to change cards, and the change must be done in the dormitory.

There are only two cards in Chen Bei's initial hand that can be replaced in this way.

If you use the effect card exchange method, you can exchange more cards.

"It's too far to get back to the dormitory from here. We won't have time. We might as well try our luck with the effect card."

Chen Bei found a secluded place, kept the straight cards from 9 to K, and then replaced the remaining three unused cards.

[Get the playing cards: Spade J, Heart A, Heart K. ]

Chen Bei looked at the three cards that were replaced and his eyes widened.

This round was really favorable for me, and my luck was particularly good.

It was originally a straight from 9 to K.

Now there is an Ace of Hearts, which can be directly upgraded to a straight from 10 to A.

Moreover, the whole set is mostly hearts, which is very close to a royal flush!