The yin energy inside the gem was also a form of vital energy. It was so fierce now because it had been converted into vital energy. The destruction of the Immortal Kingdom had not been unrelated to this ghostly energy—what ordinary human immortal could withstand such terrifying yin energy from the Six Paths of Reincarnation? So it was perfectly normal for everyone to have vanished into thin air. I estimated that the person holding the ghost staff had been fighting someone in the Immortal Kingdom, and in the end, the ghost staff had broken. That made it impossible to Seal the gem any longer, causing the energy to leak out and thereby bringing about the kingdom's destruction. After all, the ghost staff was covered with interconnected runes. A look at its overall pattern made it obvious that it had been used to Seal this gem. This point further confirmed my theory.
As for the box capable of sealing the ghostly energy, it was actually quite rare. Still, it was probably only a temporary solution. The one in my hands, for example, should have been replaced with a new one not long ago. Naturally, sealing the gem came at no small cost.
The Grand Sect Master had already been hard-pressed just making these boxes that constantly consumed themselves. Since he had no way to study it, of course he would toss this hot potato to me. Perhaps I might uncover the secrets inside and remove a source of future trouble for him. And he could still make a killing from the Immortal Kingdom. Why would he refuse?
Adding in the need to win people's hearts and stabilize Heaven's Unity, it truly was worth a try at present, which also strengthened the Grand Sect Master's resolve. Faced with such enormous benefits, the