When Alex Rockefeller acquired the Legacy of the Ultimate Book of Medicine, he already knew about the existence of the Lightning Tribulation.

This was a path that every cultivator had to go through.

Anyone who wanted to get past Divine Transcendence and arrive at Core Formation needed to experience the Lightning Tribulation once. This was a rule of the Path of God, and it was a test for cultivators.

Those who couldn’t get through the Lightning Tribulation would end up losing everything.

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