Su Zimo hurriedly circulated the Heaven Burial Sutra and absorbed endless power from the Great Emperor's Tomb into the third and fourth Grotto-heavens.
At the same time, he fused the Dharmic Daos of the Demon Dao in the Dao Fruit into the third Grotto-heaven with thousands of resplendent runes.
Demons were buried in this Great Emperor's Tomb.
The condensation of the Demon Dao Grotto-heaven met with no resistance.
The fourth Grotto-heaven was the Zenith Heaven Sword Tomb that represented the Fiend Dao.
The Zenith Heaven Sword Tomb contained the intention of burial to begin with and was similar to the Dharmic Dao of the Great Emperor's Tomb. With the power of the Great Emperor's Tomb, it was only natural for the fourth Grotto-heaven to be condensed!
However, the fifth Grotto-heaven was the Yin Yang Grotto-heaven.
It was already difficult to fuse the power of the Great Emperor's Tomb into it.