"Th-this, this..."
Duan Jihong's mouth opened and closed, his gaze darting about.
He looked at Nan Shang, then at Mo Tianji, and found the other two just as shocked as he was.
Only then did he believe his own eyes.
"Lin Ke? How did you draw a talisman after seeing it just once?"
Lin Ke blinked twice. For someone from Great Xia who had weathered the college entrance exams and higher mathematics, this was truly a basic skill.
He turned his palm over and revealed his Mystic Vein Book.
There in his hand was the Mystic Vein Book, covered in all manner of complex symbols.
"What is this? How did you draw a Formation-Starting Talisman in so little time?"
Lin Ke shrugged. "Well, you wouldn't understand even if I told you."
Mo Tianji immediately grew angry. "Stop being so deliberately mysterious. If you hadn't learned my Explosive Formation..."
"Why would martial uncle have taken you as his disciple? This is plagiarism."
Duan Jihong kicked Mo Tianji aside and bellowed, "You only slept for an incense stick's worth of time, and you've already slept your brains away?"
"Lin Ke, stop beating around the bush and explain at once."
Lin Ke said helplessly, "This is a Three-Dimensional Coordinate System."
The other three all sank into thought.
Duan Jihong folded his arms, then pointed at the Self-Destruct Talisman Lin Ke had drawn in the Mystic Vein Book. "What are these points and symbols?"
Lin Ke continued, "These symbols represent coordinates and concavity."
Standing off to the side, Mo Tianji brushed at Duan Jihong's enormous footprint on his robe and muttered, "Ahem. I don't understand."
Lin Ke had no intention of explaining it clearly and merely said casually, "You only need to remember the talisman's turning points and mark them out."
"Then use concavity