Who was the celestial Lord of six paths?

"I thought the Dao validation Alliance would give up and stop attacking the heaven domain. Who would've thought that not only did they not give up, but they've also made a profit out of it. In order to fulfill their ambitions, they're even willing to risk the lives of the billions of lives in our venerable realm. " Gongye Bo paused here, his expression became extremely serious.

"What!" He zhengdao and Wei Wuming exclaimed in low voices.

"I'm sure you've all heard of the legend of the 10th tribulation Dao master. He was a peerless master who was only a step away from becoming a Dao master, but he was assassinated at the critical moment and died under the Tribulation lightning.

As for who the culprit was, there was no conclusion and it was still a mystery.