The Monster From Krypton – A kryptonian monster’s egg is found at the bottom of the ocean. When it hatches, nothing comes out, but the red kryptonite elements in its shell turn Superman into a beast, and he is quickly hunted by the human military.
Superman’s Big Brother – Jan Danvers, having recovered from amnesia, appears back home, ready to assume his inheritance. When he learns his foster sister is Supergirl, his behaviour becomes increasingly erratic.
| Barcode | N/A |
|---|---|
| Character | Lori Lemaris, Fred Danvers, Edna Danvers, Jerro, Biff Rigger, Superman (Kal-El / Clark Kent), Lois Lane, Jimmy Olsen, Perry White, Supergirl (Kara Zor-El) |
| Cover Date | August 1963 |
| Issue | 303 |
| Rating | N/A |
| Artist | Jim Mooney |
| Colorist | N/A |
| Cover Artist | N/A |
| Cover Colorist | N/A |
| Cover Inker | George Klein |
| Cover Painter | N/A |
| Cover Penciller | Curt Swan |
| Cover Separator | N/A |
| Editor | Mort Weisinger |
| Editor in Chief | Mort Weisinger |
| Inker | George Klein |
| Layouts | N/A |
| Letterer | N/A |
| Painter | N/A |
| Penciller | Curt Swan |
| Plotter | N/A |
| Scripter | N/A |
| Separator | N/A |
| Translator | N/A |
| Writer | Leo Dorfman, Edmond Hamilton |
