of course a child chose a place that they believe to hold a special meaning or what they've assumed to be fantastical to escape to. usually, it'd be something what they've dreamed of and thus far removed from their own reality. as they showed in the flashback, rosine's reality mixed into her dream with her step-father's punch. it wasn't marred yet when she was hugged by her mother. very fitting that she only wanted for everything to simply "go away" when activating the behelith. not comprehending or even really aware that it entailed becoming a mass murderer false elven queen who wreaked havoc while turning other human children into "elves". apostle-hood may have changed rosine in some ways, but you could still see that naïve and immature innocence in even the fight scenes. apostles really are incomplete if they're this humane (jill, theresia). it makes sense > their sacrifices too, are also incomplete.
at the very least, puck was able to inform and show her that the existence of elves (which she clung onto) was true. it was a great ending to the chapter. i felt relief at the closure, even if only hell is waiting for rosine regardless.
