Answer
Railsea, a novel by China Miéville, is set in a unique world where trains are sentient beings. These trains, known as "leviathans," possess consciousness and the ability to communicate, forming a complex society with its own laws and customs. The novel follows the adventures of Sham Yeshurun, a young woman who becomes entangled in a web of intrigue and danger as she navigates this extraordinary world of living trains.