El Mar de Hierro

The world-building in Railsea is so vivid and inventive — I wonder what sparked the idea to set the story on endless trains and tunnels.

His obsession made me root for him but also raised questions about the costs of obsession. How did others interpret his motivations and choices?

The tone kept the story engaging but also made me think about whether it undercut the seriousness of the dystopian setting. What’s others’ take?