The seventieth bolt of thunder.

A violet streak of lightning crashed down with ice-cold callousness. The black-robed Ji Ning beneath it pointed with his finger, causing the golden sword of the [Greater Thousand Swords Formation] to once more soar into the skies.

Rumble…

It once more blocked the assault.

“I hope it is merely eight nine-sets. If it grows much stronger…it may put too much stress on my heartforce.” Ning was a bit worried as well. Third-level heartforce was very powerful, and it would be easy to use it against eight nine-sets, but if it became the full nine nine-sets…the power of the thunder would skyrocket to a new level. By then, each blow would most likely require Ning to use up quite a bit of his heartforce. Once it was used up, he would definitely perish.

Ning had never imagined that he would have failed during the thunder tribulation of the Celestial Tribulation, but he was now beginning to worry. The power of the eighth nine-set was already a bit beyond what he had expected.

Boom!

Boom!

The divine thunder grew increasingly powerful. After these two consecutive blows of divine thunder…everyone, be it Ning or the distant group of spectators including Immortal Diancai and Yu Wei, stared upwards nervously.

“This is merely junior apprentice-brother’s Primaltwin. Eight nine-sets should be enough; there shouldn’t be nine nine-sets,...