Actually, within the Dimension Space Stone, there are several other enslaved species, including a Seventh Rank Swallowing Star Wolf and a Seventh Rank Nightmare Soul.
These two alone are enough to activate the concealment and illusion attributes of the Illusion Array Stone. The reason the True Spirit Tower power source was chosen is that the life energy fluctuation of the Seventh Rank Dominator is still too large. The moment it is summoned, there is a certain chance it will be detected by surrounding detectors.
The Truth Mountain Range is vast. Even with the capabilities of a Ninth Rank mechanical lifeform, it is difficult to encompass the entire range within the monitoring scope. But this does not mean the Father of Truth has completely left it unattended.
In fact, along the path the Void Demon traveled, it repeatedly discovered small mechanical insects hidden deep within the forest.
