- Script
- Gardner Fox (credited)
- Pencils
- Mike Sekowsky (credited)
- Inks
- Sid Greene (credited)
- Colors
- ?
- Letters
- Gaspar Saladino
- Genre
- superhero
- Characters
- Justice League of America [JLA; Atom [Ray Palmer]; Batman [Bruce Wayne]; Flash [Barry Allen]; Martian Manhunter [J'onn J'onzz]; Wonder Woman [Diana Prince]; Hal Jordan (does not appear as Green Lantern)]; Alvin Marley (first appearance; death); Irene Marley (first appearance); Dr. Clay Rockwell (first appearance); Oleg Kormann; Royal Flush Gang [Ace [Professor Amos Fortune; Serpent Man]; King [Alexander the Great]; Queen [Elizabeth the First]; Jack [Sir Lancelot]; Ten [Judge Duffy]] (villains)
- Synopsis
- When Hal Jordan is gravely injured after retrieving a mysterious parcel, the Justice League must set off on a search for an ancient treasure, which the Royal Flush Gang is also seeking, disguised as various historical and legendary figures.
- Reprints
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story across 23 pages, but pages 14 and 23 are half-pages.
- Script
- ?
- Pencils
- Curt Swan
- Inks
- George Klein
- Colors
- ?
- Letters
- Joe Letterese
- Genre
- superhero
house ad for Superman (DC, 1939 series) #197 [80 Page Giant #G-36], on sale April 11
- Script
- Henry Boltinoff
- Pencils
- Henry Boltinoff (signed)
- Inks
- Henry Boltinoff
- Colors
- ?
- Letters
- Henry Boltinoff
- Job Number
- 6527
- First Line of Dialogue or Text
- I just broke the propellor blade on my plane.
- Genre
- non-fiction
hint submitted by John Abelson of New Haven, Connecticut
- Script
- Julius Schwartz
- Letters
- typeset
letters submitted by Leonard Rosenberg; Earl Krizek; Pittsburgh Sam; Ellen Shipley
- Script
- ?
- Pencils
- Nick Cardy
- Inks
- Nick Cardy
- Colors
- ?
- Letters
- Gaspar Saladino ?
- Genre
- superhero
house ad for Aquaman (DC, 1962 series) #34, on sale May 2
- Letters
- typeset
letters submitted by Mark Gruenwald; Larry Rotolo; Paul Seydor (no editorial responses)
- Script
- ?
- Pencils
- Carmine Infantino
- Inks
- Murphy Anderson
- Colors
- ?
- Letters
- Gaspar Saladino
- Genre
- superhero
house ad for The Brave and the Bold (DC, 1955 series) #72, on sale April 20
- Script
- ?
- Pencils
- Curt Swan (illustration)
- Inks
- George Klein (illustration)
- Colors
- ? (illustration)
- Letters
- typeset
listing of DC comics on sale in late April and early May 1967, with partial cover art from Action Comics (DC, 1938 series) #351
- Script
- Jack Schiff
- Pencils
- Sheldon Moldoff
- Inks
- Sheldon Moldoff
- Letters
- Ira Schnapp
- Genre
- advocacy
- Synopsis
- Dick wonders why Ed knows so much about everything, and Ed explains it's because he visits the library regularly.
inside back cover; published in cooperation with the National Social Welfare Assembly