question: Tell me about another book Ludwig Heinrich Kohl wrote that was inspired by 'Soulless (Parasol Protectorate, #1)'?
answer: Ludwig Heinrich Kohl's 'Heart Free (GearGuardians, #1)' is inspired by 'Soulless (Parasol Protectorate, #1)'. It narrates the story of a society where steam-powered machines take on emotional and almost human qualities.