Austin Briggs (Illustrations for "Blue Book")

Piping the devil by Kenneth Perkins (Blue Book, July 1937):

Scarlet fingers by Thomas W. Duncan (Blue Book, July 1937):

The assassins of Angora by William J. Makin (Blue Book, October 1937):

The treasure of Ys by Fulton T. Grant (Blue Book, September 1938):

Panama peril by Robert Mill (Blue Book, September 1938):