David Starr Space Ranger

David Starr Space Ranger
Author: Isaac Asimov
Latest: Page 17
Summary:

David Starr, Space Ranger (Lucky Starr 1) 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