Skylark DuQuesne Author:E.E. Doc Smith My Ally the Enemy — Dick Seaton and Marc DuQuesne are the deadliest enemies in the universe--their feud has blazed among the stars and changed the history of a thousand planets. But now a threat from outside the Galaxy drives them into a dangerous alliance as hordes of strange races drive to a collision with mankind! — Seaton and DuQuesne fight an... more »d slave side by side to fend off the invasion--as Seaton keeps constant, perilous watch for DuQuesne's inevitable double-cross!
"A marvelous epic of science fiction" --Galaxy« less