The secret of getting out of the hole

 As soon as a piece of soil fell into the sand below, everything began to shake with a tremendous tremor.  The rocks and sand stuck to the cave walls began to fall down.

 Ryan took a step back in fear.

 Xenia was very surprised to see that.

 "Ryan, what's going on? Why did this hole shake like this?"

 "I don't understand anything. As soon as I hit the wall, the walls of this hole began to vibrate like this. Xenia, what can be done now?"

 The shaking stopped before Xenia could say anything.  Xenia also did not understand anything.

 "You go again and try to move the soil. Because this vibration did not harm us. Maybe it is a natural vibration of the soil itself."

 Ryan stepped forward and struck the wall again with the sword in his hand.

 It struck the same way and again the same vibration as the ground fell from the wall on that strike.

 This time Ryan didn't back down.  He hit the wall for the third time with infinite courage in his chest.  But surprisingly this time there was no more vibration.

 "Ryan, do you understand what this means?"

 "No, what do you understand again?"

 "Actually this wall was also testing our bravery. The first two times we got scared so it vibrated. But the third time it didn't. So it didn't vibrate again. Now we can safely visualize the imprint and see it well."

 Hahaha.

 Ryan must have laughed.

 Xenia stared at Ryan in surprise.

 Eventually, Ryan's tireless efforts removed the soil from the print on the walls.  Now the imprint is well understood.

 Xenia moved closer to the wall.  The imprint looked good.

 "Here I see a plan of some place. Which points to some secret passage. But where is it?"

 Ryan also took a good look.

 "I think it's designed to get out of this hole. Look closely, the round area shown here is the hole. This hole is also round like this."

 Xenia ran her hand over the design and examined it carefully.  She also understood what Ryan was saying.

 Right in the middle of the circle is another design.  The design is a bit strange. There appears something like a disc.  One of the lines on the disc is angled to the right. Which seems like a clear line.  And around it are some more random lines.

 They noticed a more important scene than this.

 "Did you notice something Ryan?"

 "What?"

 "Look, the circumference of this design is round. But look here, there is no line here. Do you understand that?"

 "What is there to understand again? This design is very old. And it was buried under the ground. So maybe some parts have been lost from here."

 Xenia was annoyed.  She thought to himself, Ryan is so stupid, he doesn't take anything seriously.  So what? He must understand.

 "This design is round and this hole is also round. The border of this design that you can see is the border of this hole. And this hole is closed on all sides. But this design does not have that. There is a gap in this design. That means there is a way out of this hole. And this way is in the middle of this hole. We can find that way with this design."

 Ryan was against this at first, but after Xenia explained it well, he understood a little.  And besides, he has a lot of faith in Xenia. He knows Xenia never makes a wrong decision. That's why he loves her so much.

 "So what to do now?"

 "Umm, first we need to dig out the middle of this hole."

 Ryan and Xenia took a guess and determined the centre of the hole.

 They were surprised when they went there.  Because they didn't get what they expected there.  There is only sand and sand.

 "Xenia, there is nothing here. You said….."

 "Hmm, I said it. Maybe there's an imprint under the sand here. The sand here needs to be removed."

 Ryan sat up and began to move the sand with his hands.  He was tired of moving.

 "Xenia, you help me a little. It is very difficult to move the sand alone."

 Xenia shook her head.  She then knelt down on the ground, keeping the ring of light she had floating in front of them.

 She also began to move the sand.

 After removing a lot of sand, Ryan got bored and sat down.  But Xenia still did not give up.

 She started to remove the sand one by one.

 At one point, Xenia's hand suddenly touched something and she stopped.  Asks Ryan to come near him.

 Ryan walked over to her.

 Xenia completely removed the sand from there.  Then she was pleased with what she saw. Because this is what they are looking for.

 Xenia took one look at the design after seeing what she had received.

 "This is exactly the same as the print. But the problem is how to use it. I don't understand anything. Wait a minute, let me look at the print better. Is there any way?"

 Xenia got up and walked over to the design and Ryan knelt there to examine it.

 "Ryan, don't touch it. Let me see it well first. Let me know about it well. If you touch it before, it can be the opposite."

 After listening to Xenia, Ryan did not touch the design anymore.

 Xenia went to the design and put her hand in the middle of the design to take a good look.  Then she sat down next to Ryan again.

 "What do you mean? How does it work?"

 Xenia said nothing.

 She moved the disk from left to right with her hand.  The random lines in it took on a special shape. Those lines also took the shape of a small circle and in the middle appeared a small and very insignificant raised area of ​​blue colour.

 "Xenia, how do you know how to turn this disc?"