| Issue | #4 |
| Published | March 1941 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | ? |
| Characters | Sky Wizard |
| Pencils | Jack Burnley? |
| Inks | Jack Burnley? |
| Characters | Sky Wizard (last appearance); Howland (first appearance; villain; death); the Robot Terrors (first appearance; villains; most die) |
| Pencils | Emile Schurmacher |
| Inks | Emile Schurmacher |
| Characters | K-7 (last appearance); Gen. Panzi (first appearance; villain) |
| Pencils | Emile Schurmacher |
| Inks | Emile Schurmacher |
| Characters | Bullet Bob Dunn (first appearance; only appearance); King Sarx (first appearance); Princess Tellura (first appearance); X-Atlantis (first appearance; villain; death) |
| Script | Jack Burnley |
| Pencils | Jack Burnley |
| Inks | Jack Burnley |
| Colors | Jack Burnley |
| Characters | The Veiled Prophet (first appearance; only appearance); Shiek Judar Ben Ali (first appearance; villain; death) |
| Pencils | Hal Sharp |
| Inks | Hal Sharp |
| Script | John H. Compton |
| Letters | typeset |
| Characters | Ranger Bill Colt [the Ghost Rider] (last appearance); Bob Lowe (first appearance; death); Marie Lowe (first appearance); Garr Weddick (first appearance; villain); Weddick's partner (first appearance; villain) |
| Characters | Dash Dixon (last appearance); The White Knights (first appearance; villains) |
| Pencils | Jack Alderman |
| Inks | Jack Alderman |
| Notes | true story; last appearance |
| Characters | The Scorpion [Hal Ward] (last appearance); Hendricks (first appearance; villain); Dopey Dan (first appearance; villain); their gang (first appearance; villains); Mary Weld (first appearance) |
| Pencils | Emile Schurmacher |
| Inks | Emile Schurmacher |