The recording began with ambient noise: distant fireworks, the rustle of a crowd. Then a voice—soft, amused, with a rhythm she could have mistaken for any passerby—said, “If you’re listening, know this: we made a map of the night. Names, places, tiny vows. Maybe it’s yours now.” A breath, then the sound of someone tapping the portable. “This is Dateslam 18. Leave a mark. Take a memory. Don’t ruin the map.”