Shinnshiow aimed his flashlight at the carving. It turned out that there were carvings on the stone table. The carving was in the form of three horizontal lines. Each line was about twelve centimeters long. Shinnshiow then shifted to the other side of the table. He inched to the right. There were carvings there, too. Almost the same as before, there were also three lines. But the third line comprised two short horizontal lines about five centimeters long. There was a space of about two centimeters between the two horizontal lines. Shinnshiow then turned to the left side of the side where he was initially sitting. Here, Shinnshiow also found almost the same carving. Comprised three lines. The first line comprised two short horizontal lines, while the second and third lines each have a long horizontal line.
"What is it?" Yihshyong walked over to Shinnshiow.
"These engravings depict the shapes in the Hexagram!" Shinnshiow couldn't help but shout.
"Hexagrams?" Yihshyong's voice was like the shriek of a chick that had lost its mother. Apparently, he didn't understand what Shinnshiow meant.
"Right! As in Yihjing."
"Yihjing?" Yihshyong raised a hand to scratch his head. "Please explain in simpler language."
"Yihjing, the 'Book of Change,' the ancient book of fortune-telling!"
Yihshyong froze for a moment. He frowned.
"Remember yet?" Shinnshiow was so excited. To the point that he forgot that Yihshyong couldn't keep up with the pace of his thoughts. "It is one of the earliest scriptures in our ancient civilization. Initially, it was used to predict and describe the future."
"Ah! You mean that book!" Yihshyong finally remembered.
Shinnshiow knew Yihshyong was ignorant of ancient texts that date back to the time before The Great Migration. Let alone the ancient books written during the time of their ancestors still living in the old world, even Yihshyong apparently had never heard of most of the ancient books written by the people in their new world. After they lived together, Shannchyuan and Jenqyih, who were experts in history and ancient languages, often discussed these matters. They often had taught other friends about the ancient books that existed in the old world.
Yihshyong quickly stood next to Shinnshiow. He also checked the surface of the table. The two of them then checked the other sides. It turned out that there were Hexagram carvings on each side of the table. Yihshyong then ran towards the door on the east side. He shone on the door with his flashlight. On that occasion, he did so meticulously. Shinnshiow followed Yihshyong and stood to his right.
"Ah!" Yihshyong shouted.
Shinnshiow pointed his flashlight at the part of the door that Yihshyong noticed. Yihshyong was observing the top of the door. The door leaf was relatively high, which was about three meters. At the top, there was an engraving as well. It was clear that the shape of the engraving was a combination of the eight basic shapes of the Hexagram. The Hexagram has eight basic shapes. Simple was the right word to describe these basic forms. The hexagram combination combined the two basic shapes for a total of sixty-four shapes. The shape on the surface of the door leaf in front of them was six rows, each row comprising a long horizontal line.
The two of them then ran to the west wall. They found a six-line engraving in the same position on the door leaf, each line comprising two short horizontal lines. The shape was the opposite of the shape on the door on the east wall.
They cheered like children who had just received a new toy. They then sat on the benches there. Shinnshiow guessed the symbols must have something to do with the way the doors were opened.
"Now, what should we do? Go to the surface to tell our friends?" Yihshyong said as he tapped his fingers on the surface of the stone table.
"Not now," said Shinnshiow. "Our findings don't change things. We still don't know how to open these doors. So let's hold off for a moment. Let's think about it here."
The two of them then sat pensively on the cold stone benches.
"Shyongge, the carving on the door is a combination of two basic shapes. But the basic shape used is the same. The carving on the door on the east is a combination of two basic hexagram shapes in the form of three long horizontal lines, while the carving on the door on the west is a combination of two basic shapes in the form of three pairs of short horizontal lines."
"Shiowdi, maybe the meaning of the symbol is the emphasis on the basic shape of the Hexagram. So, we should only focus on the shape of three long horizontal lines for the east door, and six short horizontal lines, or what you call three pairs of short horizontal lines, for the west door."
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They then checked the side of the stone table in front of them once more. At that time, they checked much more thoroughly than before. Every inch of the table did not go unnoticed by them. Not only the table's surface, but they also check the legs and the bottom of the table. But so far, they have found nothing.