Jim Knopf, Lukas, Frau Waas, König Alfons, der Viertelvorzwölfte, and Emma, the locomotive, live on the island Lummerland. When Emma is supposed to leave the island because of lack of space for her, Lukas, Emma und Jim flee Lummerland. Thye arrive in China. There they find out that Li Si, the emperor's daughter, was kidnapped and taken to Drachenland and decide to rescue her.
