The ten science-fiction books written by W. E. Johns are

1. KINGS OF SPACE (1954)	2. RETURN TO MARS (1955)	3. NOW TO THE STARS (1956)
4. TO OUTER SPACE (1957)	5. THE EDGE OF BEYOND (1958)	6. THE DEATH RAYS OF ARDILLA (1959)
7. TO WORLDS UNKNOWN (1960)	8. THE QUEST FOR THE PERFECT PLANET (1961)	9. WORLDS OF WONDER (1962)
THE FIRST TWO OF THESE SCIENCE FICTION BOOKS WERE PUBLISHED BY ARMADA PAPERBACKS IN 1970. YOU CAN SEE THOSE COVERS BY CLICKING HERE	10. THE MAN WHO VANISHED INTO SPACE (1963)	THE FIRST SIX OF THESE SCIENCE FICTION BOOKS WERE PUBLISHED BY PICCOLO PAPERBACKS IN 1980/81. YOU CAN SEE THOSE COVERS BY CLICKING HERE

RETURN TO MARS