The Big Shot had some attainments in spatial matters, especially since it had once used a Space Anchor Point to locate the Redwood Essence.
By observing this Space Anchor Point, it could determine that the space here was relatively stable.
As for the other Netherworld Islands that had previously vanished or drifted away at random, the Big Shot did not know why. Cultivators could encounter far too many strange things, but it could be sure that this island was fine.
It even believed that the drifting of those previous Netherworld Islands might have been the Redwood Essence's doing. However, the island where the Redwood Essence's main body was located naturally would not drift about casually.
Setting up a Teleportation Array required more than formation materials and professionals. Another crucial factor was precise positioning. This Netherworld Island was right at the edge of the Netherworld Mist; someone else would never be able to pinpoint it accurately.
But it was different with the Big Shot. Its Space Anchor Point was unaffected by the mist, ocean currents, or air currents. Setting up a Teleportation Array was merely a matter of cost and permission.
Any Teleportation Array intended for profit had to be approved by major powers such as the market towns or the Four Sects and Five Platforms—private Teleportation Arrays could also be built, but only one's own people could use them.
For Feng Jun, neither of those was a problem now. As for the cost... that was basically not a problem either.
The main issue was the high initial construction cost. Moreover, he himself was a movable Teleportation Array, so he had never considered this option. In the end, he was simply too busy and lacked suitable people to manage it.
So when Great Dream Adept had asked him, he had instinctively