The power of a Thirteenth Order Space Characteristic could not be called invincible within this Twelfth Order Secret Realm, after all; Chen Fei's own cultivation was limited.
But when facing many problems, it truly gave Chen Fei many different options.
If this Ancient Cave Mansion were forced open by brute strength, the entire Molten Void Realm would sense it. Even someone proficient in formations would need a long time to silently unravel the formations outside the cave mansion.
And no one knew whether, at the moment the formations were undone, there would still be some disturbance. If that happened, everything done beforehand would have been wasted effort.
But now, relying on his attainments in formations and turning himself into Void, Chen Fei directly passed through the Ancient Cave Mansion's formations.
If someone had still been controlling this cave mansion's formations, then in the face of Chen Fei's method of crossing the formation, they could have decisively altered the formation nodes and blocked Chen Fei outside.
But this formation, which had existed for who knew how long, had no one controlling it. It could only operate according to its own laws. Under such circumstances, it had no means at all to deal with Chen Fei's method of crossing it.
As Chen Fei entered the Ancient Cave Mansion, all the Twelfth Order Origin Demons in the Molten Void Realm wore grave expressions, including those Mid Twelfth Order Origin Demons.
Eight Early Twelfth Order Origin Demons, together with Xiao Jiwen, a Mid Twelfth Order Origin Demon, had all perished in a very short time.
The other Early Twelfth Order Origin Demons did not yet know what had happened, but those Mid Twelfth Order Origin Demons deep in the void of the Molten Void Realm knew where Xiao Jiwen had gone.
"Such a lineup