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|title=The Lost Art

|sort=Lost Art

|date=July 2007

|isbn=978-0385609647

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''The Lost Art'' takes place in a post-apocalyptic world a millennium or so in the future. The Earth has turned on its axis and the technological civilisation is gone, replaced by a set up reminiscent of ours ca. 14th-15th century. It's not clear if the Reversal was actually caused by the destroyed technical civilisation or has it just happened but the Users, as they are called now, have caused the seas to rise and destroyed their own land and substantial parts of others and are now universally reviled. Who were the Users? It's not said, but their ruined cities lie beyond the Outer Ocean, to the east (and remember, the world is upside down).