Sparks by Sean MacKendrick

Drifting flickers of lights greeted the campers as dusk settled over them. The tiny fireflies pulsed and danced through the air like sparks from the small campfire. Or like the twinkling stars above.

A thousand additional lights flared into existence, in one giant bloom. Another ten thousand joined those. Laughter and conversation became concerned murmuring; then murmurs grew into screams as the glowing pinpoints swarmed. Screams turned into gagged silence as campers choked on fistfuls of light.

Afterward it was quiet and dark once again, only the occasional popping ember to light the moonless night. Soon those faded as well.