Rumble.
Above the heavens, thunder roared, its pressure bearing down upon the world.
The sky, originally as black as ink, had grown even darker. A terrifying, oppressive aura filled the air, stirring fear in people's hearts.
"Is... it going to rain?"
Little One looked up at the sky. The full moon had been shining not long ago, so how had the clouds covered it and thunder begun to rumble so quickly?
"It's not rain. It's a tribulation of thunder. I have to undergo it. Only after being tempered by the thunder can I complete my transformation and grow stronger."
Su Ye said.
"A tribulation of thunder?"
Little One stared at the cocoon before him, puzzled.
"In this era, there are no tribulations of thunder. Without them, cultivation has become easier for all living beings. But the consequence is that their foundations are unstable, and they can't use lightning to temper themselves. At low realms, this isn't obvious, but once their realm is high, it has a great impact. When you break through a major realm in the future, find a way to let lightning strike you, and remove the impurities in your body. Of course, if you can find some rare treasures of heaven and earth, you can also remove those impurities and make yourself flawless. But such things are far too rare, while heavenly thunder is easy to obtain."
Su Ye said.
A tribulation of thunder was both a calamity and a blessing, though that was true only for heaven's favored.
Little One pondered this. Just now, after he drank that beast milk, the energy in his body had ignited, forcing out many impurities from the body he had believed flawless. Though he had lost much of the power he had stored, he felt light all over, as if