| Issue | #12 |
| Published | Fall 1943 |
| Cover Price | 0.10 USD |
| Pages | 60 |
| Editing | Sheldon Mayer; Ted Udall (assistant editor); Dorothy Roubicek (assistant editor) |
| Notes | This issue contains an ad for the Junior Justice Society of America. |
| Characters | The Flash; Winky; Blinky; Noddy |
| Genre | superhero |
| Pencils | Everett E. Hibbard (signed as E. E. Hibbard) |
| Inks | Everett E. Hibbard (signed as E. E. Hibbard) |
| Characters | The Flash [Jay Garrick]; Winky; Blinky Toylan; Noddy; The Thinker [Clifford Devoe](villain) |
| Synopsis | [See synopsis for Chapter 1] |
| Genre | superhero |
| Script | Gardner F. Fox |
| Pencils | Everett E. Hibbard |
| Inks | Everett E. Hibbard |
| Notes | Some info added by Craig Delich 8-22-09. |
| Characters | The Flash [Jay Garrick]; Winky; Blinky Toylan; Noddy; The Thinker [Clifford Devoe](villain, 1st appearance); Hunk Norvock (villain) |
| Synopsis | Famous District Attorney Clifford Devoe loses a very important case involving mobster Hunk Norvock, and decides to throw in with him. A deal is struck between the two, but Devoe doesn't hear anything from Hunk for 10 years, and then when he does, it involves the Flash and a restaurant owned by the Three Dimwits. |
| Genre | superhero |
| Script | Gardner F. Fox |
| Pencils | Everett E. Hibbard |
| Inks | Everett E. Hibbard |
| Notes | Much info and synopsis added by Craig Delich 8-22-09. |
| Characters | The Flash [Jay Garrick]; Winky; Blinky Toylan; Noddy; The Thinker [Clifford Devoe](villain) |
| Synopsis | Devoe, now known as "The Thinker," takes over Hunk's gang and begins to plan a series of robberies, including a valuable diamond known as "The Sun." At the restaurant, Noddy is fed a salad of Karma leaves by a disgruntled waiter and he vanishes into invisibility! |
| Genre | superhero |
| Script | Gardner F. Fox |
| Pencils | Everett E. Hibbard |
| Inks | Everett E. Hibbard |
| Notes | Much info and synopsis added by Craig Delich 8-22-09. |
| Characters | Hop Harrigan |
| Genre | aviation |
| Script | Evelyn Gaines (signed) |
| Letters | typeset |
| Characters | The Flash [Jay Garrick]; Winky; Blinky Toylan; Noddy; The Thinker [Clifford Devoe](villain) |
| Synopsis | Discovering the secret of the Karma leaves, the Thinker sends his thugs to the Dimwit's restaurant to get a supply of those leaves, which will allow them to commit crimes unseen. Unfortunately for the Thinker, the Scarlet Speedster doesn't need the leaves of the Karma plant to be invisible! |
| Genre | superhero |
| Script | Gardner F. Fox |
| Pencils | Everett E. Hibbard |
| Inks | Everett E. Hibbard |
| Notes | Most info and synopsis added by Craig Delich 8-22-09. |
| Characters | The Flash [Jay Garrick]; Winky; Blinky Toylan, Noddy; The Thinker [Clifford Devoe](villain) |
| Synopsis | The Thinker strikes at the Flash by making him think that the Three Dimwits are the real masterminds of crime. Although the Fastest Man Alive doesn't buy the story, the authorities do, and Flash has his hands full convincing the Police that the Dimwits are just plain saps! |
| Genre | superhero |
| Script | Gardner F. Fox |
| Pencils | Everett E. Hibbard |
| Inks | Everett E. Hibbard |
| Notes | Much info and synopsis added by Craig Delich 8-22-09. |