This category is to include all related material from the works of sci-fi author Hal Clement, as at least three of his best known novels - Mission of Gravity, Close to Critical and Starlight - are known to be set in the same universe.
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Mesklinite -
Tenebran -
Symbiote (Needle) -
Sarrian -
Drommian -
Conservationist -
Mothman (Impediment) -
Thrykar's species
All items (12)
