| Release: | Aug 1971 |
| Cover: | Aug 1971 |
Earth--The Monster Maker
| Release: | Aug 1971 |
| Cover: | Aug 1971 |
An alien and his pet have a psychic link, but a space anomaly sent them to two different Earths. The JLA and the JSA must team up once more to deal with the resulting crisis.
| Writer | Gardner Fox, Mike Friedrich, Robert Kanigher |
| Cover Artist | Neal Adams |
| Penciller | Carmine Infantino, Dick Dillin |
| Inker | Joe Giella, Sid Greene |
| Editor | Julius Schwartz |
| Batman | Bruce Wayne |
| Superman | Kal-El / Clark Kent |
| Green Lantern | Hal Jordan |
| Flash | Barry Allen |
| Green Arrow | Oliver Queen |
| Robin | Dick Grayson |
| Flash | Jay Garrick |
| Hawkman | Carter Hall |
| Green Lantern | Alan Scott |
| Atom | Ray Palmer |
| Black Canary | Dinah Lance |
| Hawkman | Katar Hol |
| Solomon Grundy | Cyrus Gold |
| Atom | Al Pratt |
| Hourman | Rex Tyler |
| Superman (Earth-2) | Kal-L / Clark Kent |
| Robin (Earth-2) | Dick Grayson |
| Ora (Knights of The Galaxy) | |
| Lyle (Knights of The Galaxy) | |
| Artho (Knights of The Galaxy) |
| Age | Bronze Age |
|---|---|
| Format | Comic |
| Series Group | Justice League |
| Genre | Action | Adventure | Super-Heroes |
| No. of Pages | 32 |
| Country | USA |
| Language | English |