Firefly Sketch Magic

Prompt - 
Close-up of a hand drawing a glowing single-stroke firefly with a yellow pencil inside a dark, rain-covered sketchbook. The drawn firefly lifts off the paper, flies out of the notebook into a gloomy urban street at twilight, and instantly multiplies into a dazzling, glowing swarm of hundreds of fireflies that light up the dark alley and illuminate passing pedestrians, magical realism, high detail