The day after six pioneering Fairy Monarchs settled in the Autumn Fairy Domain, a huge Great Zhou Heavenly Teleportation Array was established on a leased piece of land.
This thing was expensive to construct and also pricey to use.
Activating a single teleportation required the consumption of a hundred strands of premium Immortal Spirit Qi.
But this thing truly was a strategic-level logistical support artifact.
It could directly communicate across infinite distances.
Take the Kunwu Immortal Domain, where the third legitimate fire of the Supreme Ancestor resides, as an example. Departing from there, even if one hurried day and night without stopping, it would take hundreds of years to reach the Autumn Fairy Domain, and any delay would mean thousands of years had passed.
And this is without carrying one's own realm for Cultivation; if one also needed to carry their realm, then the time required would be more than tenfold.