Establishing relay stations between the two cultivation worlds would still require a long period of planning.
The first thing to establish would be communication formations.
If the two cultivation worlds lacked a stable means of contact, then any foundation they built in the Seven Stars Sea in the future would be like duckweed without roots.
Blood Shadow's communication formations could transmit messages across, at most, roughly one hundred thousand li, and the communication formations in the Seven Stars Sea were about the same.
Myriad Beast Valley's inheritance was far more sophisticated. Two communication formations could be separated by as much as three hundred thousand li.
Of course, if the distance was too great, the requirements for formation materials would be excessively high, and the spiritual energy consumption would also be enormous.
If the distance was too short, then too many formations would need to be arranged from the Northern Abyss to the Seven Stars Sea.
Ideally, the distance between two communication formations should remain around two hundred thousand li, and the formations had to be built on islands with spirit veins.
Though there were many islands at sea, finding ones that had spirit veins and were suitably spaced apart was still quite difficult.
They might even need to make artificial islands in places with undersea spirit veins.
More than a month after leaving the Mirage Sea, there was no longer any trace of fifth-order spiritual energy in this area.
After all, it had not been long since the Skyrend Mountain Range's spiritual energy recovered, and the Northern Abyss Cultivation World had not yet been fully covered by spiritual energy.
In the short term, the spiritual energy generated by the Skyrend Mountain Range could not possibly diffuse all the way here.
Without fifth-order spiritual energy, naturally no Fifth-tier Demonic Beasts would