"The four people in the sky, they are Jiang Yuan's card spirits."
"Golden Crow!"
"Card spirits can't appear alone in another world, so Jiang Yuan must be in the Undead Race World now."
After regaining his composure, Gudusidan's intelligence returned online.
"Jiang Yuan might not be in the Royal City."
"Card spirits can't exist in different worlds, but Central Earth also belongs to the Undead Race World."
"The barrier around Central Earth can block other races, but it might not be able to block card spirits."
After Gudusidan finished speaking, Jiang Yuan was also taken aback.
That's right, every world has Central Earth.
Typically, each race sets up barriers around Central Earth to prevent people from other races from entering their world through this chaos zone.
But these Central Earth barriers can stop people from other races, yet might not be able to stop card spirits.
At worst, card spirits can pass through without triggering any alarms.
