With the arrival of a massive amount of materials, Peter Brown had also refined the formation he needed.
To be precise, it wasn't a cultivation formation but rather a piece of technology that utilized a certain kind of energy flow to activate and then generate a thick energy shield. This technique was usually used in interstellar spaceship navigation. Now, Peter used it to protect the island.
In some technological dimensions, interstellar navigation involved large spaceships transporting personnel, some of which were even larger than the sun, so setting up a small defensive formation for Peter wasn't much of a problem.
The energy Peter used was directly drawn from the ocean, tapping into its energy to power the shield, ensuring the defense was entirely robust.
Of course, to prevent the Sea Clan from exploiting the sea water, Peter also integrated natural energy sources. With the combined use of both types of energy, even the Sea Clan couldn't breach his defense.
