I used space to carry a lot of supplies to escape famine in ancient times

They looked at the light in the sky, their hearts filled with expectation and courage, ready to meet unknown challenges...

After successfully solving the puzzle and obtaining the Time Key, Gu Qianning and Chu Mohan knew that this key would be the key to their return to the modern era. Without any hesitation, they immediately embarked on the journey back home.

They activated the power of the Time Key according to the method they had studied before. Instantly, the surrounding space began to distort, and a passage shining with mysterious light appeared in front of them.

"Qian Ning, be careful." Chu Mohan held Gu Qian Ning's hand tightly, and the two of them stepped into the unknown passage together.

In the passage, the light flickered, and the surrounding scenes kept changing, as if time and space had lost their original rules at this moment. They felt as if their bodies were being pulled by countless forces, and they felt dizzy.

"Mo Han, I'm a little scared." Gu Qianning's voice trembled slightly.

"Don't be afraid, we'll be able to go back soon." Chu Mohan comforted her, even though he himself was filled with anxiety.

However, just when they thought they were about to return safely, something unexpected happened. A powerful dark force suddenly appeared in the passage, and this force quickly spread, trying to devour them.

"Oh no, what is this?" Chu Mohan's face changed drastically.

Gu Qianning tried to stay calm, "Whatever it is, we can't let it stop us from going home!"

They tried to use the power of the Time Key to fight against the dark force, but the dark force was extremely powerful and kept attacking them.

In the fierce confrontation, Gu Qianning and Chu Mohan gradually felt powerless. Their bodies were squeezed by the dark power and they had difficulty breathing.

"Mo Han, I can't hold on any longer!" Gu Qianning shouted.

Chu Mohan gritted his teeth and said, "Hold on, Qianning! We will definitely succeed!"

Just when they were about to despair, Gu Qianning suddenly remembered a mysterious treasure in her space. This treasure had helped them at a critical moment, and perhaps it could also be useful now.

She quickly took out the treasure from the space, and a soft light emanated from the treasure. Under the illumination of this light, the dark power seemed to retreat a little.

"It works!" Chu Mohan saw hope. Together, they injected strength into the treasure, and the light became stronger and stronger.

The dark forces were finally repelled, and they continued to move forward in the passage. But after these twists and turns, the power of the Time Key began to become unstable, and the passage began to vibrate violently.

"Oh no, the Time Key may not be able to hold on!" Chu Mohan said worriedly.

Gu Qianning's heart was also filled with anxiety, but she knew she couldn't panic at this moment, "We must find a way to stabilize the channel as soon as possible!"

They tried to maintain their balance while observing the changes around them. Suddenly, Chu Mohan discovered some strange runes on the walls of the passage, which seemed to echo the power of the Time Key.

"Qian Ning, maybe these runes are the key!" Chu Mohan said, pointing at the wall.

Gu Qianning observed the runes carefully, and based on her research on ancient characters, began to interpret the meaning of these runes.

After some intense thinking, Gu Qianning finally understood the function of the rune. She and Chu Mohan adjusted the power of the time key according to the instructions of the rune.

Slowly, the vibrations in the passageway subsided, and they finally stabilized again.

But before they could breathe a sigh of relief, countless space-time vortices appeared in the passage, and the strong suction of these vortices made it difficult for them to resist.

"Hold each other tight!" Chu Mohan shouted loudly.

They held hands and tried their best to resist the suction of the vortex, but the power of the vortex was too strong and it pulled them in little by little.

Just when they were about to be sucked into the vortex, Gu Qianning suddenly thought of a risky idea.

"Mo Han, let's use the power of the Time Key to try to break through these vortexes!"

Chu Mohan hesitated for a moment, "This is too dangerous, but we have no choice but to give it a try!"

They once again concentrated all their strength and injected it into the Time Key. The Time Key burst out with an extremely strong light, colliding with the power of the vortex.

For a moment, light and darkness intertwined, and the entire passage seemed to collapse.

But in the end, their efforts paid off. The vortex gradually disappeared under the impact of the light, and they continued to move towards the exit.

After a long and difficult journey, they finally saw the exit of the passage, which was a warm light, symbolizing hope and return.

"We're finally home!" Gu Qianning said excitedly.

Chu Mohan pulled her and quickened his pace.

The moment they stepped out of the passage, they found themselves back in the familiar modern world. But before they had time to celebrate, they found themselves in a strange place.

The surrounding area was a desolate ruin with no signs of life.

"Where is this? How could this happen?" Gu Qianning said in surprise.

Chu Mohan observed his surroundings and said, "Maybe there was a deviation in our return."

They began to explore the ruins, hoping to find some clues. Deep in the ruins, they found a dilapidated stone tablet with some vague words engraved on it.

After careful identification, Gu Qianning discovered that these words seemed to be telling a story of a terrible disaster.

"Has something happened in the modern world?" she said worriedly.

Chu Mohan frowned, "No matter what, let's find a place where there are people first."

They continued to move forward, encountering various dangers and difficulties along the way. The harsh environment and lack of food and water brought them huge challenges.

But they did not give up, they supported each other and moved forward step by step.

Finally, on the distant horizon, they saw the outline of a city.

"There should be someone there!" Chu Mohan said.

They quickened their pace and walked towards the city. When they entered the city, they found that the city was also in a state of depression, and people's faces were full of fear and confusion.

Gu Qianning and Chu Mohan found an old man and asked him what had happened.

The old man sighed, "A sudden disaster has plunged the world into chaos. We have lost a lot and don't know what to do in the future."

Gu Qianning and Chu Mohan looked at each other, and a sense of responsibility surged in their hearts. They decided to use their experiences in ancient times and the knowledge they had learned to help the world regain its vitality.

They first started by looking for food and water. Gu Qianning used the materials in the space to provide temporary help to the people, while Chu Mohan organized people to rebuild their homes and restore infrastructure.

Thanks to their efforts, the city gradually recovered, people's lives began to return to normal, and the light of hope shone in people's eyes again.

However, they know that this is just the beginning. There is still a long way to go in the future, and they will continue to use their own strength to create a better future for the world.

After a period of hard work, the situation in the city is getting better and better. People began to plant crops again, and factories gradually resumed production.

Gu Qianning and Chu Mohan also met many like-minded friends in the process, and they formed a team together to solve various problems facing the city.

By chance, Gu Qianning discovered a book about ancient technology. Some of the technologies recorded in the book may help them restore the prosperity of the city faster.

Chu Mohan led the team members to conduct research and experiments based on the records in the book. After many failures, they finally succeeded in combining ancient technology with modern technology and developed a new energy system.

This energy system is not only efficient and environmentally friendly, but also low-cost, providing a strong impetus for urban development.

As the city continued to develop, people from other regions also came to learn and draw lessons from their experience. The names of Gu Qianning and Chu Mohan gradually spread throughout the world, becoming heroes and symbols of hope in people's hearts.

On a sunny day, the city held a grand celebration to celebrate their rebirth and prosperity.

Gu Qianning and Chu Mohan stood on the stage, looking at the happy crowd below, their hearts filled with emotion.

"We are finally back and have brought changes to the world." Gu Qianning said with a smile.

Chu Mohan held her hand tightly, "This is our mission and our honor."