Some kind of thin, thin thread shot from within her lab coat and forcibly attached Kamisato Kakeru’s severed hand to her newly vacated wrist. The writhing thread moved on its own like a parasite. It was a rough action like sewing up the torn belly of a stuffed animal, but it must have used some kind of special technique because the woman immediately clenched and unclenched the hand.

Toaru Majutsu no Index New Testament vol.15 ch.4 pt.4