David Starr, Space Ranger

Earth is on the brink of catastrophe. The vital foodstuffs supplied by its Martian colony are being poisoned. Working in secret, the ruling Council of Science sends David Starr, its youngest member, to the Martian farmlands to discover the truth behind the murders..."Ingeniously combines mystery with science fiction." - The New York Times Book Review"A thrilling tale ...endless imagination, exciting ideas and events." - Groff Conklin in Galaxy Science Fiction