paperback – Page 4

1958 Dell paperback original

Adam Knight was a pen name of Lawrence Lariar

cover art by Robert Bonfils

better image than previously posted

better image than previously posted

3rd with Southern Californian private eye Joe Puma

cover art by Robert Abbett

cover art kept for later edition

1948 Dutton hardcover – a Guilt Edged Selection

1951 Boardman hardcover – cover art by Denis McLoughlin

1952 Boardman softcover – cover art by Denis McLoughlin

better image than previously posted

cover art by Ray Johnson?

better image than previously posted

better image than previously posted

cover art by Walter Popp

better image than previously posted

1936 Man Overboard! by Collins in the UK and Dodd Mead in the US

abridged by Avon in 1947 and published with this alternate title

cover art by Ann Cantor