What does "stealth operation" imply? It means undercover surveillance. If magicians who routinely deliver women are able to detect them, then they are no longer operating in stealth. As for inspections, that's the responsibility of the Bright Posts. You must know that there is a wide road leading to the Inner Fort Moat. Additionally, there are twenty magicians guarding it. Currently, their only concern is that they do not know when the stealth operation shift change will occur. They can only hope it will be as long as possible. Otherwise, their cover will be blown immediately.