While the others were still talking, Su Jiu and Chu Luohen had already finished their second version of the formation.
This time, they had filled in the formation based on Chu Luohen's ideas.
Just as Su Jiu had predicted, this formation did indeed require more spiritual qi to activate.
To save time, Su Jiu activated it together with Chu Luohen.
They formed identical hand seals, and two icy strands of spiritual qi connected their middle fingers to the center of the formation.
As they poured in more and more spiritual qi, the formation shone ever brighter.
Once it reached a certain intensity, the formation emitted the same light as before.
The formation they had laid out resonated with the red formation on the curtain.
It looked as though they were about to succeed, yet both vaguely sensed that something was still wrong.
Before either could think it through, however, the formation patterns on the ground changed again. A portion vanished, and the formation on the red curtain resumed its normal operation.
Su Jiu pressed her lips together. The same unexpected problem had occurred twice. If she still could not see what was wrong, she would be a fool.
Chu Luohen also frowned slightly and rubbed his forehead. "This was my mistake. I overlooked something."
As for what exactly he had overlooked, probably no one present except Su Jiu could understand what he meant.
But Silver Snow noticed that the portion of the formation patterns that had disappeared was precisely the part Chu Luohen had altered last.
"Junior Granduncle, the formation patterns are correct now, but where are we supposed to find the material we're missing?"
Everyone knew that formation patterns were drawn with spiritual qi, but few knew that some formations also required demonic qi to support them.
The formation