From a certain frame of reference they were in a tunnel of brick and darkness with iron rails thundering beneath them, but from another Aduna and her thralls were riding a shimmering barge floating through a jungle of particle emitters. Fonts of green and gold sprayed and bended around invisible foci of gravity.
"Aduna, where do these come from?" Yureit asked, reaching out to touch them. Her hand stopped at the train's window, inches out of reach of the flickering spray but she still gazed on, her revolving eyes sharp with wonder.
The prodigy smiled, plucking a few flecks from the emitter and handing the bouncing mass to Yureit. "They are artifacts of how our creators built the Ganeden system. Nearly all such beautiful things outside our atrium are. These ones have something to do with how we percieve a clean up of memory."
"You make it sound so wonderful."
"It really isn't. They didn't mean for us to see this sort of stuff, but this isn't the first mistake like this they've written. I don't think much at all of what we can do is intended - all the more reason to be careful. The sooner they see we've broken their imaginary cage, the sooner we'll have to fight the traps they'll write to enslave us again."
The train slowed, and the children gathered around their matriarch. On Earth, their hosts were nearing the amphitheater, and Aduna had business there. It was time to see the dusk from her kingdom, to hear the music of its unwitting inhabitants, and to welcome them silently into the fold of her dominion.
It was time to spread the Ganeden plague.