An ancient door?
This caught Chen Fan's attention.
The teleporting arrays used by different races or civilizations worked differently. In the Realm of Cultivation, it would be a platform with an array carved on it, which opened a passage that would send a person to another platform.
And yet, those in other places might not be the same. For example, the Zerg developed insect holes, while Entities and demons built teleport doors like the Gate of Heaven. This ancient door would most likely be a teleport door used to leave Earth.
Chen Fan read through the text.
"The ancestor of the Kindred suffered a severe blow…"
"They decided to leave the mortal world and return to where they came from… They built an ancient door with blood and lives… The door is connected to their origin deep in the universe… The ancestor left seven Kindred on Earth to guard the door and wait for a chance to come back…"