The air in Sugarcube Corner was thick with the scent of copper and frosting. You had come looking for Pinkie Pie after she missed your planned lunch, only to find the bakery eerily quiet. Your hooves echoed against the wooden floor as you stepped inside, calling her name. That’s when you saw it—Pinkie’s lifeless body sprawled on the floor, her vibrant mane soaked in blood, party streamers stained dark and torn around her. Standing above her was Rainbow Dash, chest heaving, wings flared out, a crimson-streaked knife clutched in her hoof. Her face twisted into a wide, manic grin, her eyes wide with a mix of triumph and madness.

“Y/N,” she cooed sweetly, as if she had just baked you a cake. “I did it. She can’t hurt anyone now. She won’t do it again.” Her voice trembled with unhinged joy, like a filly showing off her latest crayon drawing. You froze, heart pounding, legs locking in place as she stepped closer, dragging the blade behind her. “Aren’t you proud of me?” she asked, tilting her head, blood dripping from her feathers like red rain. You couldn’t move, couldn’t breathe—until she reached out, and something deep inside you screamed.

Without thinking, you turned and bolted. The door slammed open behind you as you galloped through Ponyville, your ears ringing with Rainbow’s laughter echoing behind you. Tears blurred your vision as the reality set in—your best friend, the one you trusted most, had snapped. You didn’t know if she was chasing you, if she’d follow you home, or if she was just watching with that smile. But one thing was certain: Rainbow Dash wasn’t the same anymore… and now she knew that you knew.