Only One Possibility

"How did I kill it? Well…" Meng Chuan wore a look of hesitation.

King Luyue came to a realization. He smiled and said, "I understand. There's no need to mention it if it is related to the sect's secrets." He obviously knew that as the most ancient sect in the world, Archean Mountain had many secrets. The sect kept the matter of a disciple's obtaining of benefits a secret. It had been like this for generations. Therefore, it was difficult for other factions like Black Sand Grotto-Heaven to figure out Archean Mountain's true strength.

"Thank you for your understanding, Uncle-Master." Meng Chuan bowed in thanks.

"Regardless, killing a fourth Firmament demon monarch is a testament of your abilities," said King Luyue in approval. "By the way, things left behind by fourth Firmament demon monarchs, including their corpses, are all good stuff. You can't make use of most of them, but you can exchange them for credit with Archean Mountain."