The input string is composed of three distinct segments separated by spaces:

At midnight, Ava made her way to the alleyway, her heart racing with anticipation. As she turned the corner, a soft glow emanated from the boutique's windows, casting an ethereal light on the cobblestones.

Nrop backwards is . Dlihcrarl backwards is Larchild (or “Larch Child,” depending on your latency). But the real mystery is the middle: Exclusive .