2 books in series

Subspace

Subspace is a 2-book series with 2 primary works first released in 1965 with contributions by E.E. "Doc" Smith.

#1
Subspace Explorers

#1 of 2 in Subspace

1965 • 2 Readers • 3

#2
Subspace Encounter

#2 of 2 in Subspace

1983 • 2 Readers • 3