Rainbow did not fly directly to the frontline. Instead, it landed on the ground halfway to the frontline.
"Why did we stop? Did you sense some kind of danger?" Charles asked, a bit curious.
Rainbow had never disobeyed Charles' commands before.
"There is an invisible barrier ahead. I can't fly through it," Rainbow responded quickly.
Charles looked in the direction Rainbow pointed to.
In that moment, he received a hidden hint.
[Invisible Barrier: A barrier constructed by the Serpent People using ancient magic. It can effectively block all flying objects in the sky. The only way to pass through it is by using the underground passage in the desert.]
"Since that's the case, let's move quickly. We should still be able to find a way through the invisible barrier before nightfall," Charles said, still feeling optimistic.
