| Issue | #9 |
| Published | April 1965 |
| Cover Price | 0.25 USD |
| Pages | 84 |
| Editing | Julius Schwartz |
| Characters | Flash [Barry Allen]; Flash [Jay Garrick]; The Pied Piper; Super-Gorilla Grodd; Dr. Alchemy; Captain Boomerang |
| Genre | Superhero |
| Pencils | Carmine Infantino |
| Inks | Murphy Anderson |
| Characters | The Flash [Barry Allen]; The Golden Age Flash [Jay Garrick]; Iris West; Joan Garrick; The Thinker; The Fiddler; The Shade |
| Synopsis | The Flash [Barry Allen], disappears whilst giving an exhibition of his super speed, he finds that he has inadvertently vibrated into the Earth of another dimension which seems to be a near copy of his own world. Here, he meets the Flash of that world, Jay Garrick. |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | from Flash, The (DC, 1959 series) #123 (September 1961) |
| Characters | The Flash [Barry Allen]; Iris West; The Pied Piper |
| Synopsis | The Flash encounters a bizarre super villain who utilises sound as a weapon of crime - The Pied Piper. |
| Genre | superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | from Flash, The (DC, 1959 series) #106 (April-May 1959) |
| Characters | The Flash [Barry Allen]; Iris West; Dr. Alchemy; Ben Sniper |
| Synopsis | As Mr. Element, Al Desmond nearly defeated the Scarlet Speedster with his mastery of elements. Newly armed with his "philospher's stone", he re-emerges as Dr. Alchemy |
| Genre | superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Frank Giacoia |
| Reprinted | from Showcase (DC, 1956 series) #14 (May-June 1958) |
| Characters | The Flash [Barry Allen]; Iris West; Captain Boomerang ["Digger" Harkness, also as George Green]; W.W. Wiggins |
| Synopsis | Petty crook, "Digger" Harkness becomes "Captain Boomerang" in order to publicise the Wiggins Game Company's new product, he does however, have his own plans - as a super criminal. |
| Genre | superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Murphy Anderson |
| Reprinted | from Flash, The (DC, 1959 series) #117 (December 1960) |
| Letters | typeset |
| Characters | The Flash [Barry Allen]; Iris West; Super-Gorilla Grodd [as Drew Drowden] |
| Synopsis | Grodd uses his evolution-accelerator to change into a human being - Drew Drowden, he then plots to rule the world! |
| Genre | superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | from Flash, The (DC, 1959 series) #108 (August-September 1959) |