| Issue | #109 |
| Published | October-November 1959 |
| Frequency | bi-monthly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | Flash [Barry Allen]; Mirror Master |
| Genre | Superhero |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | in Flash Archives, The (DC, 1996 series) #2 ([March] 2000) |
| Characters | Flash [Barry Allen]; Iris West; Hank (Photographer who works with Iris); Mirror Master [Sam Scudder](villain) |
| Synopsis | Mirror Master escapes from jail and goes on a crime spree. |
| Genre | Superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Reprinted | in Flash, The (DC, 1959 series) #187 (April 1969); in Flash Archives, The (DC, 1996 series) #2 ([March] 2000) |
| Characters | Flash [Barry Allen]; Fred Jensen; Saremites (The Pale People); Maugites (villains) |
| Synopsis | Flash encounters undersea world of the Pale People. |
| Genre | superhero |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Notes | The Pale People are later encountered in Justice League of America #90. |
| Reprinted | in Flash Archives, The (DC, 1996 series) #2 ([March] 2000) |