Immediately afterwards, an explosive noise as if from a strike of lightning exploded out. Stiyl had activated the restraining rune card he had put on her.

Index’s backbone creaked as it bent like a bow.

“Warning: Chapter 47, Verse 80. Restraining effect on mind and body due to a psychological effect has been confirmed. It is affecting mental functions. Leading the restraining effect to a dummy area and putting priority on maintaining ability to analyze spells.”

The rune on the laminated card started to fade like a poster that had been left in the sun for long periods of time. The important “staining” of the rune was being removed. Of course, once that coloration disappeared, its effects would disappear too. It would not last long.

(…She may have been weakened by the interruption from the remote control spiritual item, but she is still the library of 103,000 grimoires. I did not think that this would be enough to seal her.)

Toaru Majutsu no Index vol.22 ch.11 pt.3