It's the same as ever in the fleet of generational ships making their way through interstellar space. 

The artificial lights on the roof of the greenhouse are supplemented by the occasional globe from Sunny Day being cast, growing rows of food to support the population. This section of the farms is an orchard of fruit trees currently in the earliest stages of fruit production.  A few final blossoms wilt amid small nubs which will one day become pears.  

Verity is riding on her daémon's back.  As long as she doesn't look up at the unnatural ceiling or pay attention to the evenly spaced trunks she can pretend she's walking through a real forest.  At least until she reaches the end of this greenhouse.

Before this can happen, a slithering sound comes up from behind them.  They turn around just in time to see a massive creature with a mirror at the front where it's face should be.  That's not a daémon variety Verity has ever heard of, and no human in sight.  It doesn't occur to her that it would actually attack until it's too late, and the creature's lunge sends them into the mirror.