Reborn Troops

Wanwan nodded, thinking that Qianqian's suggestion made sense. She picked up her phone and called Xu Mei.

"Hello, Mr. Xu? I'm Zhou Wanwan." Her tone was a little nervous.

"It's me, what's wrong?" Xu Mei's voice remained steady.

"I want to discuss something with you about that necklace." Zhou Wanwan took a deep breath.

“Sand cave exploration is risky after all, so we recommend that you use professional exploration equipment and the necklace can only be used as an auxiliary tool.

In addition, we would like to sign an agreement with you to clarify the liability issues. ”

There was silence on the other end of the phone for a few seconds, and then Xu Mei smiled. "Are you worried that something might happen to me and affect your store?"

Zhou Wanwan was speechless for a moment and didn't know how to answer.

"I understand your concerns." Xu Mei's voice was still calm, "But you don't have to worry. Since I dare to go on an adventure, I naturally have my preparations.

The necklace is only part of my plan, I won't rely on it completely. As for the agreement, I can sign it."

Zhou Wanwan breathed a sigh of relief, and the big stone in her heart finally fell to the ground. "That's great, thank you for your understanding."

After hanging up the phone, Zhou Wanwan and Qianqian continued to devote themselves to the design.

A few days later, they finally completed the preliminary design drawings.

The main body of the necklace is a silver chain, and the pendant is inlaid with a small LED light surrounded by micro heating plates.

The battery is cleverly hidden in a node of the chain, which does not affect the appearance while providing sufficient power.

"It looks good." Qianqian nodded with satisfaction, "The next step is production."

Zhou Wanwan also smiled, but she still felt a little uneasy.

Xu Mei’s request was too special, and she always felt that this matter would not end so easily.

Zhou Wanwan was moved when she heard Master Zhongshan's suggestion. Indeed, if an emergency signal light could be added to the necklace,

Not only would it improve Xu Mei's safety factor, it would also add practical value to her design. She immediately discussed this idea with Qian Qian.

"Emergency distress signal light?" Qianqian raised her eyebrows. "That's a good idea.

But it’s a bit technically complicated. We need a signal light, and we have to consider the battery life.”

"Can the signal lights and LED lights be integrated together?" Zhou Wanwan asked.

"It's possible in theory, but we have to redesign the circuit." Qianqian picked up a pen and drew a few strokes on the paper.

"We can make the signal light flashing, so it is not normally on and will only be activated in an emergency."

"That's great!" Zhou Wanwan said excitedly, "This way, the necklace will have more comprehensive functions."

"However, we have to go to the sand cave for a field investigation." Qianqian put down the pen,

Looking at Zhou Wanwan seriously, "After all, no matter how perfect the design is, it must meet actual needs."

Zhou Wanwan put down her phone, frowning. She had been trying to contact Xu Mei for three consecutive days.

But no one answered the phone and no one replied to the text message. She felt a little uneasy and always felt that something was wrong.

"Qianqian, I can't contact Xu Mei." She turned to look at Qianqian who was sorting out the design drawings, with a hint of anxiety in her tone.

"Can't get in touch?" Qianqian looked up, a little surprised. "Didn't he say it would be completed within a month? Why did he suddenly lose contact?"

"I don't know either." Zhou Wanwan sighed, "I don't even know where the sand cave he mentioned is. Without specific information, how can we go on a field trip?"

Qianqian put down the pen in her hand, walked to Zhou Wanwan, and patted her shoulder gently.

"Don't worry, maybe he just has something urgent to do and can't answer the phone. Let's wait and see."

"But time waits for no one." Zhou Wanwan rubbed her temples. "If he doesn't show up, we can't even determine the direction of the design."

Just then, the door of the store was pushed open. A man in a black windbreaker walked in.

There was a trace of fatigue on her face. Zhou Wanwan looked up and was stunned - it was Xu Mei.

"Mr. Xu!" She stood up immediately, with a hint of surprise and reproach in her tone, "Where have you been these days? I've been trying to contact you."

Xu Mei took off his hat, revealing a slightly haggard face. "I'm sorry, something happened and my phone was broken, so I couldn't contact you in time."

"What happened?" Zhou Wanwan asked with concern.

Xu Mei did not answer directly, but walked to the counter and took out a crumpled map from his pocket.

Spread it out on the table. "This is the map of Sand Cave. I just came back from there."

Zhou Wanwan and Qianqian leaned over to take a look. The map was marked with densely packed routes and symbols, and it was obviously a complex underground cave system.

"The sand cave is much more dangerous than I thought." Xu Mei said in a low voice, "I originally thought it was just an ordinary adventure.

But after entering, I found that the environment inside was extremely harsh. The temperature was extremely low, the light was almost zero, and the terrain was complex. If you were not careful, you would get lost. "

Zhou Wanwan was terrified when she heard this, and couldn't help asking, "Are you... okay?"

Xu Mei shook her head. "I'm fine, but my companion was injured. That's why I came back in a hurry to see your progress."