Richard Clifton-Dey

First published in hardback by ERB Inc. in 1935. This U.K. paperback edition published by New English Library (ISBN: 0450015564) is dated April 1973. Cover art by Richard Clifton-Dey.

Published by New English Library (ISBN: 0450015793) in September 1973. Arthur Frazier was a pseudonym used by Kenneth Bulmer and Laurence James, in this instance by Bulmer. Cover art by Richard Clifton-Dey.

Published by New English Library (ISBN: 0450015807) in September 1973. Arthur Frazier was a pseudonym used by Kenneth Bulmer and Laurence James, in this instance by Bulmer. Cover art by Richard Clifton-Dey.

Published by New English Library (ISBN: 0450017370) in January 1974. Arthur Frazier was a pseudonym used by Kenneth Bulmer and Laurence James, in this instance by James. Cover art by Richard Clifton-Dey.

First published in the U.S. in 1971as "Children of the Griffin" by Elizabeth Giles. This retitled edition published in the U.K. by New English Library (ISBN: 0450009866) in December 1971. Cover art by Richard Clifton-Dey.

First published in the U.S. by Avon in 1969. This U.K. edition published by New English Library (ISBN: 045000595X) in September 1970. Raymond Giles is a pseudonym of John R. Holt. Cover art by Richard Clifton-Dey.

First published by New English Library in 1972. This later printing (8th?)(ISBN: 0450041751) is dated June 1978. Cover art by Richard Clifton-Dey. First book in the 'Edge' series which eventually reached over sixty titles, all of them from George G. Gilman (a pseudonym of Terry Harknett).

First published by New English Library in 1972. This later printing (5th?)(ISBN: 0450035816) is dated October 1977. Cover art by Richard Clifton-Dey. Second book in the 'Edge' series which eventually reached over sixty titles, all of them from George G. Gilman (a pseudonym of Terry Harknett).

First published by New English Library in 1972. This 2nd printing (ISBN: 0450024075) is dated March 1975. Cover art by Richard Clifton-Dey. Third book in the 'Edge' series which eventually reached over sixty titles, all of them from George G. Gilman (a pseudonym of Terry Harknett).