A master of civilization finds it very easy to conceal their presence within their own civilization.
Even a warrior profession, completely unfamiliar with the concealing ability, can use the civilization domain to fully obscure their own presence.
Every conqueror of plundering civilizations knows that unless the strength difference is too vast, directly entering the civilization domain is courting death, because the master of civilization can attack from extremely close range under the cover of the domain, something even top assassins find challenging.
So either compress and weaken the civilization domain with the military, or send subordinates to force the master of civilization to act, and after they reveal themselves, use reconnaissance skills to lock on before entering.
Chu Xiu once did just this; before he chose to show himself, both Lilith and Wu dared not easily enter his domain.
