C54 Medicine Only Gold will Shine

A swirling mass of darkness, about a foot and a half wide and as tall as a person, loomed ominously. How long would it take to disperse it? How many strikes would it require?

The North King demonstrated to everyone present exactly what it took.

One night. Sixteen thousand strikes.

Chu Jiuge had been silently counting. When she reached sixteen thousand, a loud "boom" echoed