An instant later, however . . .
“We’re just going to trample on His Majesty’s adoration a bit.”
Francesca brandished her umbrella, and the world turned inside out.
It was a beautiful castle.
It was not policed like a tourist attraction, but the nearby doors and the gardens visible within showed signs of being well maintained. Its time-worn stone walls lent it an air of solemn grandeur and harmonized fantastically with its location in the deep forest.
“. . . Wh-What?”
The cry that escaped Ayaka’s mouth were high pitched and quavering.
She knew that they had been inside a building until a few seconds earlier.
Now, however, the cold concrete, the glass shards, and most of all the mountains of sweets and the monsters feasting on them had vanished without a trace.
It was as if none of those things had ever existed in the first place.
But Ayaka’s voice was not shrill because the scenery around her had been replaced.
She had only just seen the world turn inside out, after all.
Why was her pulse skyrocketing and her whole body breaking out in sweat?
Because she recognized this scenery.
“Now way. This is . . . the castle in Fuyuki. . . .”
“Where?”
Ayaka startled at the voice from beside her and turned to look.
She found Saber standing in exactly the same position he had been until a moment before.
“! . . . Thank goodness! Are you all right?!”
“Yes, but I am surprised. This is . . . even more incredible than the ‘projection mapping’ that rascal Saint Germain showed me. It’s an illusion. It’s perfectly fooling our perception—not just what we can see, but even the smell of the breeze and the temperature of the soil.”
“Illusion . . .? Not teleportation, or anything like that?”
“No, I doubt we’ve gone anywhere physically. The police aren’t here, so they must be deceiving our senses, not the space itself. My mage companion knows a lot about this sort of thing.”

Fate/Strange Fake: Volume 6, Chapter 20 ("Dream Becomes Reality")