Rogue Planet

by E.C. Tubb

Published December 1976

Earthfall

by E.C. Tubb

Published March 1977

Breakaway

by E.C. Tubb

Published February 1975

Collision Course

by E.C. Tubb

Published 14 October 1975

Alien Seed

by E.C. Tubb

Published 19 August 1976