Notes
Stepsons of Terra, a standalone novel by Robert Silverberg.

This volume is a "dos-à-dos" omnibus in the Ace Double series. It also includes A Man Called Destiny by Lan Wright.

Also published as Shadow on the Stars (FoxAcre, 2002).

Previously published in a shorter form as Shadow on the Stars in Science Fiction Adventures (April 1958).

The image opposite and the blurb below are from the 1979 Sphere Books paperback edition, ISBN 0722178247. Cover illustration by Peter Elson.

Publisher's Blurb – Lower Cover
EXTRA-TERRESTRIAL EXTERMINATION

It had been five hundred years since the distant Terran colony of Corwin had communicated with Earth. But now Corwin was threatened by the indomitable warriors of Klodni and the peaceful planet desperately needed help. Baird Ewing was the ambassador chosen by his people to find that help and save Corwin from destruction.

But Earth had changed . . .

Ewing found a decadent world of worthless pleasure-seekers devoid of hope and incapable of help. The only remaining vestige of the old world on Earth was to be found in the College of Abstract Science. It was Ewing's last hope. If he failed it was the end of the line for him, Corwin – and the galaxy.

STEPSONS OF TERRA is a classic science fiction novel by Hugo and Nebula award-winning writer Robert Silverberg – one of the all-time SF 'greats'.