escapes a 6 km explosion by running through walls

From the flow of magic power, the circular symbol, and the Thor's hammer form the magician existed in, Kanzaki was able to guess what was coming next.

She unhesitatingly fled.

A bluish-white beam of light appeared coming from below and heading up as if to stab into the heavens. It shot straight through the center of that twenty-kilometer-radius circle.

Immediately afterwards, a third of Radiosonde Castle was utterly annihilated.

***
A third of Radiosonde Castle had been annihilated.

An avalanche of wreckage did not rain down on the Kanto region because the massive amount of energy had blown away the third of the fortress to the extent that not even dust remained. That spell was powerful enough to forcibly destroy the ozone layer and it was similar to a solenoid coil. The Throwing Hammer had continually revolved around that circular orbit while carrying a massive amount of electricity. That had given the electrified air in the center of the circular orbit a vertical vector.

...That explanation alone seemed to make sense, but the attack was actually physically impossible.

With just the laws of science, the phenomenon created some inconsistencies.

But magic compensated for that and forced it to work.

"haa...haa...!!"

Kanzaki breathed heavily right next to the edge of the destruction.

The edge glowed orange like the inside of a blast furnace. The stone walls and ceiling that had been creating an odd sense of intimidation were no longer there. Just a running long jump's distance away, there was nothing but open space.

She had used her supersonic speed to its limit without thinking of the consequences.

She had headed forward tearing through walls and pillars.

But she could not do it again.

She had no way to deal with it if the same thing happened again.

She had not been able to use her sword or wires in time for a few walls and had merely tackled her way through them at full speed. She had used a bare minimum of defensive spells, but her body was crying out in protest.

And most importantly, she would no longer have anywhere to run to after two more of the same attack.


- New Testament Toaru Majutsu no Index Volume 2 Chapter 4 Part 4, 6