The Secret of Sigma Seven
The aliens are invading! No, they're not from another galaxy. They're not even from Mars. They're from Hollywood! A science fiction convention has come to Bayport, and movie director Simon Devoreaux has lost his billion-dollar baby: the film of his latest blockbuster has dematerialized before his eyes.
Children's fiction, Extraterrestrial beings, fiction, Science fiction, series:HardyBoys, collectionID:HBMS3
Franklin W. Dixon
A pseudonym for a series of ghostwriters hired by the Stratemeyer Syndicate to write The Hardy Boys and Ted Scott Flying Stories, along with some Nancy Drew crossover stories. [Leslie McFarlane][1] is the most well known of these writers having written the first Hardy Boys book along with twenty others.

  [1]: http://openlibrary.org/authors/OL1822558A/Leslie_McFarlane