A few seconds later, the distant skyline suddenly lit up.
A blinding flash of lightning flared.
A Sea of Thunderbolt covering half the sky was spreading from the depths of the swamp at a speed visible to the naked eye.
"RUMBLE!"
A deep, rolling thunder approached, as if ancient war chariots were rumbling across the sky.
Everyone felt a terrifying, suffocating pressure coming from the direction of that sea of thunder.
At the center of that sea of thunder, an unimaginably massive silhouette flickered in and out of view.
It was the shadow of a snake. The mere section of its body visible through the clouds was a thousand meters long.
It churned the thunderclouds, and countless thick bolts of lightning slithered across its body.
"The Nine-headed Demon Serpent… a clone of that Demon Serpent is here!"
Gaius's expression changed drastically.
"It actually made a move itself!"
