"However, even now, I still have one doubt!"
Hearing this, Yuan Tiangang asked, "What doubt?"
"Of Serpent Spirit's seven great assassins, six have now revealed themselves. The only one we do not know is Hidden Spirit."
Yuan Tiangang shook his head as well and said something that set Di Renjie thinking.
"Heh heh, I don't know either.
That person is extremely mysterious. In fact, he was not trained by Serpent Spirit itself.
By chance, I learned where he came from: the Big Dipper Pavilion!
But the Big Dipper Pavilion was far too mysterious. I had Serpent Spirit investigate it for a long time, yet we found nothing. It was as if such an organization did not exist in this world.
In time, the matter was simply dropped."
"Oh, the Big Dipper Pavilion..."
After thinking for a while, Di Renjie said, "Last night, you burned a batch of diagrams used for calculations in your room, did you not?"
To Yuan Tiangang, those words were like a bolt from the blue. He froze in shock. "You... how did you know?"
Di Renjie said coldly, "Of course, you told me yourself!"
Yuan Tiangang feigned composure. "Oh? I would like to hear this."
Di Renjie said, "Do you remember our conversation last night about the 'strange events of the Luo River'?
You said that the two almanacs described the weather and hydrology around the Luo River.
The old master was very familiar with the Luo River. Back then, when the Eight Trigrams diagram appeared in the Luo River, it was because he had calculated from the weather that a huge whirlpool would emerge at the bottom of the river on the twenty-second day of the sixth month. Only then did he place the stone stele in the river, astonishing the whole world."
Yuan Tiangang