First edition paperback original. Collection of four "Troon Family" novelettes; each tells the tale of the next generation of Troon men as they set out to explore the unknown. Includes "The Space Station A.D. 1994"; "The Moon A.D. 2044"; "Mars A.D. 2094"; and "Venus A.D. 2144." Both "John Wyndham" and "Lucas Parkes" were pseudonyms of English science fiction writer John Wyndham Parkes Lucas Beynon Harris (1903 - 1969).
