Although surrounded by the Boundary, whether it was the surface or underground, it was filled with Evil Wood. Nowadays, this stuff didn't even cost money to acquire, with plenty on the surface of the Fatty Province, essentially inexhaustible and limitless.
Moreover, the more he piled up, the higher it got, starting from two feet high to now five feet high. Going by the current trend, if left unattended, in a hundred years, he could build a mountain range here, and many nearby residents had also started picking up this material for heating.
Initially, he had been worried about whether he'd taken too much Evil Wood, which might suppress the resentful spirits underground, leading to another massive eruption of resentful spirits like last time, but soon he ceased to worry about it. Given the speedy growth of the Evil Wood, the amount he took was merely a drop in the ocean, truly negligible and not worth mentioning.
After that, he was no longer polite.
He went all out.