The crystal exploded the moment it entered the swarm of moths. When the smoke cleared, only a thick layer of charred moths remained on the ground.

Mercuric fulminate?

Lu Sheng returned to Sun Tiantian and Xiao Yu's side, subtly observing Xu Yi.

Although mercuric fulminate crystals are highly potent, they are extremely unstable and can explode with the slightest friction or heat.

How could Xu Yi, a school doctor, have mercuric fulminate? And how dare he carry it with him without taking any protective measures?

"I will contact the school administration office tomorrow to have Liu Zihan move to another floor. Let's clean up the corridor first."

Noticing Lu Sheng's gaze, Xu Yi simply smiled faintly and then led the others to clean up the battlefield.

Sun Tiantian and Xiao Yu were blinded by the phosphorus powder and didn't see Lu Sheng dealing with the moths, so they assumed it was all Xu Yi's doing.

Lu Sheng saved himself the trouble of explaining, and after dealing with the mess, he excused himself and went back to his bedroom to sleep.

It was past midnight when Lu Sheng skillfully pressed the sign-in button, just in time to claim the gift pack for 7 days of sign-in.

[Sign in for 7 days to unlock a limited-time mission: Ride the rocking horse to stockpile supplies]

[Time Limit: 10 hours]

[Mission Rewards: Level 2 Base Security, Host's High Temperature Resistance]

This task is exactly what Lu Sheng wanted.

The persistent high temperatures have greatly increased the load on the power grid, and large-scale power rationing will occur across the country in just a few days.

In such weather, food spoils faster, and with the added burden of power rationing and spoilage, the country's existing reserves of vegetables and meat will soon face shortages.

Unbearable hunger can quickly destroy the morality and civilization that humanity has inherited for thousands of years. People who are starving will rush into any place where they can find food and sweep everything away like locusts.

While most people were still unaware, Lu Sheng took the opportunity to replenish supplies.

After Sun Tiantian and Xiao Yu fell asleep, Lu Sheng quietly left Dingxiang Tower.

Even though it was already night, the outdoor temperature was still in the forties. The sweat that had just flowed out evaporated quickly, and every pore felt like it was covered up, making it feel stuffy and itchy.

Lu Sheng put on two masks, changed into a black jumpsuit, covered the bright and colorful lights of the Pleasant Goat with medical tape, and carefully stepped on the gas pedal.

Fortunately, compared to its flamboyant appearance, the rocking horse's performance is indeed as described in the system.

Waterproof and heat-resistant, with a very stable chassis, an almost silent engine, and incredibly fast speed. If it weren't for its outrageous appearance, Lu Sheng would give it a perfect score.

Lu Sheng drove the rocking horse directly to the largest shopping mall in the vicinity.

These past few days have been the mall's 10th anniversary celebration, and a large amount of supplies have been prepared to coincide with the food festival.

However, in the previous life, the mall's core power supply line was damaged by flooding, and by the time the government took over the supply of goods, most of the goods in the warehouse had already rotted and spoiled.

Rather than wasting such a valuable resource, she should take over.

The mall's security room was flooded, but Lu Sheng pried open the fire door and proceeded unimpeded.

Having previously worked as a yogurt promoter in a supermarket operated by the mall, Lu Sheng knew the location of the mall's main warehouse and went straight there after entering.

To coincide with the store anniversary promotion, the warehouse was well stocked, and Lu Sheng was not shy about offering free purchases.

Organic vegetables that usually cost tens of yuan per kilogram are stuffed into the space in bundles, and grain-fed beef and mutton from dozens of freezers are taken away along with the freezers.

All kinds of fresh imported fruits were swept into the space, and ice cream, milk, yogurt, snacks, and drinks were all packed into boxes. Nothing was left behind as long as it could be taken away.

It took Lu Sheng a full three hours to empty the warehouse.

After finishing his shopping, Lu Sheng returned to the mall and bought some down jackets and thermal pants for winter, as well as toiletries, bed sheets, blankets, and other household items to last for decades.

I also picked up some usable snowmobiles and snowboards in the sports brand section and the appliance section, as well as appliances that can improve the quality of life, such as dishwashers, range hoods, and steam ovens.

Lu Sheng didn't even spare any beauty and skincare products. She stuffed all kinds of brands like La Mer and Helena Rubinstein into her space in baskets. There was enough for her to apply to her face and even use the serum on her feet every day.

Fortunately, the space is limited only in terms of the horizontal area, but the vertical space can be stacked infinitely. Lu Sheng piled up the open space in the yard until it was taller than a three-story villa.

Before leaving, Lu Sheng also took two new chainsaws from the corner of the mall where renovations were being carried out.

At close range, the chainsaw is the king of weapons; encountering it will leave you either dead or severely injured.

It was already four o'clock.

Before dawn, Lu Sheng rushed back to Peking University and headed straight for the university's experimental building.

After navigating the long outdoor corridor, Lu Sheng followed the route he remembered and found the experimental greenhouse for the agricultural and forestry major.

Kyoto University has a nationally supported agricultural and forestry research project group, where many graduate and doctoral students conduct short-term experimental observations of their research findings in greenhouses.

"Thanks to my senior classmates for their graduation projects."

Lu Sheng said softly, and quickly carried all the seedlings in the greenhouse into his space, along with dozens of buckets of nutrient solution and potting soil.

These are the best agricultural plants in China, developed with a lot of money and manpower. They are many times better than those sold on the market, and many are special varieties that have never been seen before.

Lu Sheng brought these back to his space to plant. If things return to normal in the future, he can take them out and hand them over to the country, so that all the research and funding he has invested over the years will not be wasted.

After emptying the experimental greenhouse, Lu Sheng rushed to the department head's office on the third floor of the main building.

In the apocalypse, hoarding food isn't enough; you also need handy weapons. Otherwise, you'll just be someone else's deliveryman, hoarding supplies only to have others loot your loot.

While chainsaws are powerful, they are cumbersome and have limitations in operation.

The department head is a cold weapon enthusiast. When Lu Sheng helped him clean his office before, he glimpsed that he had collected a lot of good stuff, including not only sharpened swords, but also the Tianpo RS470, a composite crossbow that is listed as a prohibited item in China.

The capital city has very strict security, making it virtually impossible to obtain firearms at present.

The composite crossbow has extremely strong penetrating power, and its lethality within a 50-meter range is even greater than that of a pistol. When paired with hunting crossbow bolts, it can easily penetrate bulletproof vests and shields.

In the event of a future zombie horde, this type of weapon, capable of a one-shot headshot, will be extremely important.

Lu Sheng glanced around the department head's office and, in addition to two composite crossbows and several bolts, picked out a Damascus Persian knife and a forged steel dagger.

Before leaving, he even tested the knife on the department head's desk. It was incredibly sharp, cutting wood as easily as chopping melons and vegetables.

When I left the main building, it was already dawn, and the water on campus had receded to knee level.

To avoid attracting attention, Lu Sheng simply put away the rocking horse and walked back to Dingxiang Tower.

Back in the bedroom, Lu Sheng changed her clothes and was about to lie down for a nap when suddenly a commotion came from outside the door.

There was chattering from both men and women, and the sound of footsteps suggested they were hurrying downstairs.