Su Yao and the others finally returned to the safe house with the treasure crystal. The safe house was slightly dilapidated due to the high temperature of the apocalypse, but it was still their most solid fortress.
Upon entering the safe house, Su Yao eagerly began researching how to use the energy of the secret treasure crystal to upgrade the climate control device. She placed the crystal next to the device's core energy slot, and the system automatically scanned and connected to it.
"Initiating analysis of crystal energy structure, estimated time 30 minutes." The system's cold voice rang in Su Yao's mind. Su Yao waited anxiously, knowing full well that the success or failure of this step was directly related to their survival in the apocalypse.
Thirty minutes later, the system indicated that the analysis was complete. "The crystal energy can be perfectly integrated with the climate control device, but a series of complex energy guidance procedures are required. During the integration process, the safe house's defense system will be temporarily shut down."
Su Yao frowned. The shutdown of the defense system meant they would face external threats. But for the sake of long-term interests, she gritted her teeth and decided to take the risk. "Ling Yu, you and Father are responsible for setting up some temporary early warning devices around here. Mother, you assist me with energy guidance."
Everyone sprang into action. Su Yao and her mother stood in front of the climate control device, carefully drawing out the energy from the crystal and guiding it into the device's energy circuit, following the system's instructions. As energy was injected, the device began to emit a faint glow, and various indicator lights flashed incessantly.
However, just as the energy guidance was halfway through, the warning device suddenly sounded an alarm. "Unidentified creatures are approaching the safe house, in large numbers!" Ling Yu's voice came through.
Su Yao's heart tightened, but she couldn't stop what she was doing, or all her efforts would be in vain. "You hold them off for a while, I need to complete the energy channeling."
Ling Yu and Su Yao's father rushed out of the safe house with weapons, only to see a pack of wolves-like creatures engulfed in flames charging towards them. Ling Yu activated his ice-type ability first, raining down ice blades at the wolves, but the wolves, enveloped in flames, melted instantly upon impact.
Su Yao's father used his earth-based abilities to build an earthen wall in front of the safe house, temporarily blocking the flame wolves' attacks. The flame wolves continued to ram the earthen wall, spewing flames from their mouths, and cracks gradually appeared in the wall under the scorching heat of the flames.
Inside the safe house, Su Yao and her mother continued the energy guidance with complete concentration. Sweat dripped from Su Yao's forehead, and her hands trembled slightly with tension. "Almost there, almost there," she whispered.
The battle outside intensified, and Ling Yu's ice-type abilities were being severely depleted, turning his face pale. Su Yao's father was also gradually losing his strength under the relentless attacks of the Flame Wolves. But they both knew they could not retreat.
Finally, as Su Yao channeled the last bit of crystal energy into the climate control device, it emitted a bright light and began operating stably. Su Yao quickly activated the safe house's defense system and expanded the newly upgraded climate control range to the area surrounding the safe house.
The moment the fire wolves approached the defense system, they were repelled by a powerful force. Sensing danger, they turned and fled.
Su Yao stepped out of the safe house, looking at the exhausted Ling Yu and her father, her heart filled with gratitude. "Thank you for your hard work. This upgrade is a success, and our chances of survival in this high-temperature apocalypse have greatly increased."
She returned to the safe house and checked the system's information about the climate control device. The upgraded device could not only regulate temperature better, but also purify the surrounding air, and even create an environment suitable for crop growth within a certain range.
“Next, we can try planting some crops to stockpile more food resources,” Su Yao said. With the energy boost from the secret crystal, they were no longer just passively coping with the high-temperature apocalypse, but began to actively plan their future survival. Although the road ahead was still full of unknowns and dangers, they had more hope and courage to face it.
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