Threshold (Palmer novel)

Threshold
First edition
AuthorDavid R. Palmer
Cover artistBroeck Steadman
LanguageEnglish
SeriesTo Halt Armageddon
GenreScience fiction
PublisherBantam Spectra
Publication date
December 1985
Publication placeUnited States
Media typePrint (Paperback)
ISBN0-553-24878-2 (first edition, paperback)
OCLC13000483
Preceded byEmergence 
Followed bySpēcial Education 

Threshold is a science fiction novel by American writer David R. Palmer, published by Bantam Spectra in December 1985. It was his second book published, following Emergence, and was intended to be the first book of the To Halt Armageddon trilogy.[1]

  1. ^ Palmer, David R. (1990) [1984]. Emergence (Signature Special ed.). Bantam Spectra. p. 297. ISBN 0-553-25519-3. Threshold (Book I of the To Halt Armageddon trilogy)