"Alien city in the jungle"

When Jack looked up at the sky, there were a few stars shining brightly, and the moon was small, because the moon was on its last days. This is the system of the world, that the moon had to be full again, another month had to pass in this whole cycle.

Jack was out on a hike in the mountains with his friends Den, and Zayn, they decided to stay the night in the woods, so they set up camp. They were just sitting outside, they had eaten food, now they had a party by the fire for some time before going to sleep.
Jack looked up at the sky as Zayn started a story that was hard for him to believe, Zayn was the only boy in their group who sometimes said things that his friends didn't. These talks didn't look good, but they couldn't live without Zain. And Zayn probably knew this very well, that's why he did not stop his habit again and again.

He kept on explaining to them that whatever they are doing, they should think about how it was made, who made it.
Jack looked up at the sky, fed up with such talk.

At that time they were on the edge of the mountain, where the forest was not deep, and there was no danger of any kind.

And there were more campuses a few meters away in their neighborhood, the place had almost become a recreation area. And people used to come and go here. While they were talking, Den drew his friends' attention to a strange light coming from the mountain, which was coming from the same mountain that all these campers were near. The light was partly blue and partly whitish, and its brightness was quite intense, but it could only be seen by looking very closely.

Jack and Zane followed him, looking at the light and pondering, then suddenly Jack had an idea and said to his friends:
"Come see what's there."

After a few repetitions, everyone finally got ready, and walked towards the light. The surrounding campus was quiet and its occupants were asleep.

Then they began their journey towards the light, and began to climb the mountain, the green on the way seemed to glow even in the night. As they got closer the reality of the light was revealed, they were actually glowing walls made of some kind of iron, or metal. It had become a kind of territory, as if someone lived beyond these walls.
At last they reached the walls, and they covered the distance quite quickly.
There was a board erected nearby, which read, "Keep away from here, this is an alien colony."
Now the three have different opinions, Jack said that there are aliens and we should go back. Zain said no aliens, we should circle again in the morning.
Den said we should check now.

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Now you have to comment to know what they found there, who found it, and what they saw, then I will write further. Until then I would like your permission.

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