Direct Descent, by Herbert, Frank

Direct Discent is the only YA entry in Frank Herbert's entire catalog. Expanded into novella length from a 1954 story called Rat Pack Planet it tells the story of a 81st century Earth that has been hallowed out entirely and turned into a planet-sized library. The innards of the Earth were used to construct a fleet of ships that colonized the stars while the people who remained behind dedicated themselves to the pursuit of knowledge; they sent wave after wave of librarians out who collect[…]

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