Riya adjusted the strap of her bag and stepped out into the humid afternoon. The narrow lanes of Chandni Chowk were a maze of color and noise: vendors hawking jalebis, the call of cycle-rickshaw drivers, and the ever-present haze of incense and chai vapor. She walked with purpose, but her mind replayed the messages she'd received the night before—images of sunglasses, a familiar laugh, and the words: "Meet me at 6. I have something to show you."