space travel

Discussion in 'Science Fiction' started by mick, Jun 7, 2017.

  1. mick

    mick New Member

    hi
    my name is mick and many years ago I read a book about an inventor ? who made some type of green substance which allowed man to use as a fuel for space travel I cant remember the author or the title but seem to recall it was the first in a series can enlighten me ???
     

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