“Warning: Chapter 29, Verse 33. Seven seconds until complete activation of the Scarlet Stone of Pexjarva.”

(Wha—!?)

In shock, Kamijou pressed the bottom of his shoes against the ground in order to stand up and move to his next course of action.

Immediately afterwards, an intense pain crawled up from his toes, to his ankle, his shin, and his knee. The pain was similar to that of having the joints forcibly moved. Something invisible seemed to move along the floor and crawl into his body through his leg.

Toaru Majutsu no Index vol.22 ch.9 pt.2