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And then spent ages in 'Digitopolis', which I think is my personal utopia - all computer chips and coding and actually being able to have a 3D digital representation of your face made, which is quite spooky.
My favorite character in the story wasTheDodecahedron, an inhabitant of Digitopolis - one of the many worlds Milo visits -with twelve faces, each of which shows a different emotion.
He travels to Dictionopolis, the kingdom of words, to Digitopolis, the land of numbers, escapes from the doldrums, goes astray by jumping to the Island of Conclusions and at last rescues the two princesses, Rhyme and Reason, from the Castle in the Air.