With Senior Yun Lu's help, the grand formation was quickly set up.
The purpose of the isolation formation was to cut off sound, as well as all the true energy and other things he produced that might be detected by the outside world. This allowed him to neither damage the room's interior nor let anything outside discover what was happening.
Because every move he made would be absorbed by this formation.
Yang Chen looked at the formation Senior Yun Lu had set up and asked, "Senior Yun Lu, what kind of attack can this formation roughly withstand?"
"Young Master, it will have no problem blocking one strike from a Half-step Earth Martial Realm expert," Senior Yun Lu replied.
She herself was a master builder, so spending resources to construct a formation capable of blocking one strike from a Half-step Earth Martial Realm expert was naturally no difficult task. After all, it was only one strike and had no real practical use; such formations were usually used for testing.
Yang Chen looked at the formation and muttered, "Half-step Earth Martial Realm should be enough."
With that thought, he wasted no more time. Grasping the Blazing Fire Spirit Pen, he dipped it into the Blazing Heaven Sacred Fire.
With a gentle touch, the Blazing Heaven Sacred Fire immediately displayed perfect compatibility with the Blazing Fire Spirit Pen. There could not have been a more seamless fit. The lava of the Blazing Heaven Sacred Fire actually clung to the Blazing Fire Spirit Pen like real ink.
No wonder the Heavenly Capital Great Emperor had said that the Blazing Heaven Sacred Fire was the ink of the Blazing Fire Spirit Pen.
Yang Chen's eyes shone. Then he fiercely flicked the Blazing Fire Spirit Pen. Once the Blazing Heaven Sacred Fire fused with the Blazing