"So what now? They already know that we have a way of communication which is much more efficient than the TV. And TV alone is already far too advanced here. Even in my past life, such thing doesn't exist," I said.
For a long distance communication, even the cult must have some, right? They either use their wind mages to fly and deliver some information. Or maybe if it's in the sea, they used water mages to travel underwater. Making it hard for us to notice.
I have seen Carmen swum in the ocean once. She was very fast. But now that I'm a master level summoner and an Aura Master, I think I'm faster since she's still an expert level water mage. Though Spot is the best for underwater transportation now even if I have the Crab People.
Even if the cult don't send wind mages or water mages, they can still use their summoners to open portals to deliver messages. But the location they can go to is limited to where their monster is.