The Fountain of Youth, as the name suggests, is a spring of water that can make people immortal.

Doniel was shocked. He had never heard of the Fountain of Youth, so when he heard this term out of the blue, his heart was still filled with incomparable shock and expectation.

"Doniel." Although Qi Yan was excited, he still didn't dare to promise anything easily: "The Fountain of Youth is just a passage that appears in an ancient book. I'm not sure what it does." He was even more afraid to determine whether it has side effects that can destroy people.

Qi Yan was excited because he discovered something that could be recorded in history. Just like archaeology, when a mysterious truth and space are discovered, the whole person is excited.

Perhaps Qi Yan's spirit of exploration comes from his father.

Doniel gently touched the blue crystal that Qi Yan broke off, and poked it lightly, feeling his fingers getting wet.

"...Is this really the Fountain of Youth?" Doniel was incredulous: "I have never heard of it."

"I only read it in ancient books, and it has not been confirmed yet." Qi Yan's excitement slowly passed: "I don't want to take risks, so I am only going to take this small piece back for research..."

"You seem to have forgotten your identity." Doniel glanced at Qi Yan with a smile: "This is not your hometown where you can play around."

Qi Yan shrugged: "Yes, I should have thought of it earlier. But I still want to ask for your consent."

"What are the benefits?" Doniel asked.

Qi Yan thought for a while: "I am willing to teach the children everything I know."

Hearing this, Doniel and Mas, who was in a confused state, looked over together.

"Teach the children?" Doniel asked in confusion, "Why the children?"

"Because they are still young, it is the right time for them to learn these things." Qi Yan said truthfully, "In addition, I hope that in the future, no matter what happens, they can use this knowledge to survive in difficult situations."

Doniel fell into deep thought for a long time before nodding.

"Deal." After a pause, he added in a faint voice, "I hope I can trust you."

[The male protagonist's favorability towards Qi Yan +5, current favorability: 60]

I don't know if it was Qi Yan's illusion, or if there was really a pattern, the sound of the ground stopped ringing in the early morning. The ground shook slowly twice, like a waltz of exit, telling humans that the collision of nature is about to disappear.

When Qi Yan and Doniel took Mas back, several strong men among the Samod people were standing outside the largest tree house, testing whether there was any danger, and preparing to go look for Doniel and the others.

They were relieved to see Doniel coming back, especially when they saw Mas coming back with them, they looked at Doniel with an indescribable light in their eyes.

"Doniel! Good boy!" An older man came over and put his arm around Doniel's shoulders: "The people of Samod are proud of you!"

Doniel smiled, revealing his white teeth: "It wasn't me who found Mars."

The man paused and glanced at Qi Yan who was following behind him: "Is that the case?"

"Yes, when I found them, they were walking back." Doniel nodded: "He found Mars first."

"Ah...well...if that's the case, you have to thank him anyway." The man hesitated, with obvious embarrassment on his face. He should be reluctant to thank Qi Yan...

Doniel looked at him, and after a long time he pushed him with his fist: "Go and thank him! At least Mars no longer rejects Qi Yan."

The man was shocked: "Mars actually..."

"He's just a child, he won't be unable to tell right from wrong."

Qi Yan vaguely heard their conversation, turned around and looked at Mars who was held in his mother's arms, and for a moment he actually felt a little sigh.

It has been such a long time since he came to this planet of Chekris, and now he is integrating well into this big family.

As if sensing Qi Yan's gaze, Mars looked over, then said something to his mother and ran over.

"Hey!" Mars shouted, "Thank you!"

Qi Yan felt a warm feeling in his heart, and Mars' undisguised gratitude touched the softest part of his heart.

"You're welcome."

There was really nothing to be thankful for. Mars was missing and he couldn't let it go, that's all.

A new day begins. The men continue to dig out the thousand-year-old tree and build unique small houses inside. The women are not to be outdone. They use vines and wind-dried petals to make many beautiful decorations and hang them on windows and doorways. Every family also puts up a sign in front of their tree house with their name engraved on it. The

houses spread out in a circle around a big tree in the middle in a very regular manner. The big tree is naturally Doniel's house.

But what surprised Qi Yan was that he and Doniel were actually in a tree house. As the name suggests, Doniel needs to watch him and know the results of his research on the "Fountain of Youth" as soon as possible.

Doniel's tree house has three floors. The second floor is a half platform, and you can see the first floor. The third floor is an extra space among the lush leaves.

Qi Yan's "laboratory" is here.

"You can stay here during the day." Doniel pouted his head nonchalantly: "If the children come to listen to stories, they will be on the first floor."

Qi Yan nodded: "Okay."

"At night, I will sleep on the second floor. I opened the skylight, you can call me, but don't think about running away."

"Yeah, I know." Running away is impossible for the time being.

But when talking about escaping, Qi Yan suddenly remembered that he was still a hostage: "When are you going to exchange hostages with the government?"

After speaking, Doniel's brows furrowed deeply: "You want to leave here?"

Qi Yan lowered his head slightly, looking a little lonely: "...I still have unfinished business."

The cause of his father's death, the mysterious document, these are all things he wants to investigate clearly in the government.

Doniel heard the bitterness in Qi Yan's tone clearly. After a long time, he couldn't resist the curiosity in his heart and asked softly.

"Is it about your father?"

Qi Yan raised his head suddenly, and a trace of vigilance flashed in his eyes: "How did you know?!"

Doniel touched his forehead embarrassedly: "...I overheard it by accident." Can he admit that he eavesdropped at the door of the earth house!

Qi Yan stared at Donil suspiciously, and after a moment, he sighed softly.

"It's considered a dead person, there's nothing to worry about."

Staring into Donil's eyes, Qi Yan paused for a word.

"My father died while working on the crystal source for the government."