BOOM!
The city was filled with scorching heat and the stench of blood. At some point, in the northern district, a desperate roar was followed by a boom completely different from the sounds of battle.
The sound was a dull thud, like a heavy hammer striking a great drum. It was a BANG that seemed to explode directly in one's soul!
In the northern district, an inky black light shot into the sky. Like mountains and seas, this dark radiance spread madly outward on the shockwave, faster than a clap of thunder could be heard.
In an instant, it swept over an area several miles in radius. This surging black light showed no signs of weakening, continuing to rage in all directions, annihilating every person and object in its path.
At that moment, a single, familiar term surfaced in the minds of all the High Tier Cultivators looking toward the northern district... "Self-detonation!"
A desperate trump card that every Cultivator possessed!
