Chapter 463: The Arrival of the Thunder Tribulation, Battle with Celestial Vault

John's figure flickered, and he appeared within Heavenly King's World-in-Hand. He gazed up at the thick, oppressive black clouds above, his expression solemn.

"Don't worry, I've got this!" he said calmly, his eyes filled with determination as he stared at the dark clouds overhead.

This was a test for him as well. If he could help Heavenly King stabilize his World-in-Hand, it would give him more confidence when it came time for him to face his own Emperor Thunder Tribulation in the future.

Boom!

Thunder rumbled, and from within the heavy clouds, purple lightning flashed, resembling the Chaos of Demons.

Heavenly King had been prepared, but even so, the sensation made his scalp tingle, and his heart filled with unease.

The Emperor Thunder Tribulation had begun, and there was no turning back. It was either success or death.