“Also, you should understand this one clearly. How could the real Aureolus Izzard lose so easily?” said a voice from behind the alchemist. In a moment, a warm, oven-like atmosphere brushed past the alchemist’s face. Then, in a formerly empty place, Stiyl Magnus appeared.

A mirage…?! The fake Aureolus began to back away.

The so-called mirage was a phenomenon caused by thermal expansion that caused light to refract. Thus, it was possible for Stiyl to seemingly melt into the air or cause himself to appear somewhere like a movie projection. Such a fake image was what was repeatedly speared by Limen Magna. The true Stiyl had hidden himself in the air and crept behind Aureolus.

Toaru Majutsu no Index vol.2 ch.2 pt.6