Ziff-Davis · August, 1941
Vol. 3 #6
The Return of Circe; Problem on Mars; Mr. Murchison’s Ghost; Secret League of Six; Ebbtide Jones’ Atom Constrictor; Peter Fereny’s Death Cell; Man, an Unnecessary Evil
Writers: Nat Schachner, Duncan Farnsworth, Robert Moore Williams, Don Wilcox, Miles Shelton, William P. McGivern, Jep Powell
Artists: Julian Krupa, Magarian, Robert Fuqua, Rod Ruth, H. Wofford Jr., Guy Gifford