Ye Mo's Purple Eye Soul Sever was at level six now. His spirit sense blades were invisible and he gathered his own spirit sense spike. Spirit sense spikes and soul spikes were different. The soul spike attacked spirit sense while the spirit sense spike was not for attack. It was for dealing with formations and restrictions that spirit sense couldn't scan in.
Before, he could use spirit sense blades for that too but there were two drawbacks. One was that it used too much spirit sense and second it caused too much commotion. If it was a formation someone was guarding, it would be easily noticed. Spirit sense spikes didn't have this limitation.
Of course in order to stay stealthed when piercing formations with spirit sense spike, his own spirit sense had to be very powerful and he also needed to be experienced in formations.
At this moment, Ye Mo's spirit sense spike easily penetrated this level nine formation and went inside the room.
