Victor Pelevin. The helmet of horror: Kreatiff on Theseus and the Minotaur (№ 408910)

Any of the techniques applied on their own can be easily discovered. But if they are used in combination and this is done subtly, so that the methods replace each other constantly, and their intensity remains at the border of perception all the time, almost one hundred percent accuracy of manipulation is achieved with its complete invisibility.