Three short and one long whistle means everything is fine; three short and three long whistles means you are safe but trapped and unable to escape. Song Yun's current situation is a dilemma, so she blew the whistle three short and three long whistles.

Qi Monan, who was frantically digging at the ruins, suddenly stopped and shouted, "Stop, everyone, and be quiet."

Everyone stopped and held their breath, then they heard a whistle coming from deep in the ruins below. It was blown several times, and Qi Mo Nan confirmed that it was three short and three long.

He remembered the agreement Song Yun had made with him: three short and three long sounds meant safety, but the person couldn't escape.

Safe, she is safe.

Qi Mo Nan's hands kept shaking, and a light gathered in his red eyes. He pulled out a whistle from his collar and blew it hard in response, one short and one long, asking her to stay where she was and wait for rescue.

Based on the location of the whistle, Qi Monan immediately formulated a rescue plan.

It would take at least several hours to reach the bottom by digging with hands alone, which was obviously not possible. He didn't know the specific situation below, whether there was enough oxygen, whether he was really uninjured, and the weather was so cold. These few hours could be fatal for the people below.

"Bring the tools and start digging from this side." Qi Mo went south.

With the use of tools, the excavation speed was obviously much faster. According to Qi Monan's plan, a large hole was quickly dug, and then the excavation was extended from the periphery of the hole towards the target direction. The speed was even faster, and there was no need to worry about hurting the people below.

It was already dark, and Song Yun felt very cold and dizzy. She guessed that she might have a fever due to an infected wound.

Thinking of the rusty nails that cut her skin, Song Yun felt a headache. She thought she was in trouble this time.

It was pitch black all around, and she could only hear the clanging sounds of digging above her head. The discomfort in her body made her feel an unprecedented sense of fear. The darkness before her eyes was like a giant beast with its mouth wide open, ready to devour her completely.

She really wanted to take out a flashlight and shine a beam of light on herself.

But she didn't bring a flashlight when she came down, so it would be difficult to explain, so she just gave up.

She poured the remaining half tube of nutrient solution into her mouth, and her body did feel better, but the infection in the wound would not be eliminated by the intake of low-level nutrient solution.

I hope I can get a tetanus shot when I get out, otherwise it will be really troublesome.

After an unknown amount of time, Song Yun's head began to feel dizzy again. Suddenly, a beam of light appeared before her eyes. She closed her eyes and heard Qi Mo Nan calling her name. She opened her mouth subconsciously and said, "It's me. I'm here."

A pair of hands reached out and carried her out of the narrow corner. In the light of the flickering flashlight, she saw Qi Mo Nan's tightly pursed lips and his red eyes.

He held her with his arms so tightly that it hurt her a little.

She leaned into his arms and whispered softly, "I'm fine, Qi Mo Nan, I'm fine."

Not sure if Qi Monan heard it or not. She tilted her head and fell into complete darkness.

When I woke up again, it was already noon the next day. Ziyi was guarding my bedside. There was still half a bottle of IV drip left. There was a mixed smell in my nose, which was not pleasant.

Her whole body felt sore and weak that it was difficult for her to even lift her hands.

"Ziyi." She opened her mouth, her voice hoarse.

Ziyi, who was sitting on the edge of the bed in a daze, turned her head suddenly when she heard the voice, her face full of surprise, "Sister, sister, you're awake. How are you? Where do you feel uncomfortable?" Ziyi started crying as she spoke.

There was joy in his eyes, but the panic and fear in them were not washed away by the joy.

Ever since he and his sister got together, she has always been an omnipotent person in his eyes. He never thought that his sister would collapse like an ordinary person, with her face as pale as paper and unable to wake up no matter how much he shouted. He was very scared and panicked.