Ravens

Li Na entered the classroom, her eyes scanning the room until they settled on Ning Yu. Their eyes met for a brief moment, but Ning Yu quickly averted her gaze, hastily grabbing a book and pretending to immerse herself in its pages.

Li Na couldn't help but smile as she watched her friend. However, the book in Ning Yu's hands was upside down. Li Na shook her head, muttering "silly" under her breath as she made her way towards her own desk. She carefully placed her schoolbag on the chair, about to take her seat, when a sudden, jarring 'thump' echoed through the room. 

Li Na's head snapped around, her eyes darting around the classroom as she searched for the source of the noise. Her gaze eventually settled on the window, where a black raven was perched, its beak striking the glass.