Explore 70 gaslamp fantasy writing prompts for teens inspired by fog-filled streets, gaslight, secret societies, and quiet supernatural unease. This collection blends historical fantasy, gothic atmosphere, and character-driven storytelling, offering plot hooks, opening and closing lines, character ideas, settings, and cinematic picture prompts. Ideal for creative writing lessons, quick writes, or longer YA projects rooted in mystery, restraint, and the uncanny.