In the clanging heart of 1850s London, where steam whistles pierce the fog like impatient ghosts, a scrappy street lad named Finn and a whirlwind inventor girl called Liora stumble upon a brass lantern that hums with secrets from a bygone age. What begins as a lark amid pickpockets and piston strokes spirals into a whirlwind of rooftop chases, bungled blueprints, and the tender pull of unlikely kinship, all while shadowy figures scheme to choke the city’s inventive spark. A tale of grit wrapped in giggles, where every cog turns toward hope.