C3281 Brother Wu Take the Knife
Mr. Wu, take the knife.
With Randeng around, Ning Qi could be at ease with the safety of the Void Immortal Hall. If Defeated Heaven Devil Lord didn't have any special means, he wouldn't be able to find this place.
Most importantly, Defeated Heaven Devil Lord probably didn't know about the Void Immortal Hall. The probability of finding the Central Continent in the vast Ghost Domain was too low