Only the purest path was worth a try.
"This stone recognizes its master, Grandfather. With your blood to nourish it, or perhaps letting Yun Zhou try, it might just work."
The Family Head trusted Yun He completely, and was the first to let a drop of his blood fall upon the crystal. Nothing happened. He then called upon Yun Zhou to try, but the crystal remained silent just the same.
Chapter 262