The first thing about this story that should have jumped out at a regular reader of the Legion’s adventures in 1965 was that the art had drastically changed from previous stories. Not like a Jack Kirby-to-Neal Adams change, or an Early Bill Sienkiewicz-to-Late Bill Sienkiewicz change, but a pretty big change nonetheless. John Forte’s Legion boys had long, angular faces and mature features. You assumed there were probably college kids. A couple of them (Mon-El) even looked like they might have the beginnings of receding hairlines. Taking a look at Superboy and Invisible Kid in the first pages of this story, one sees they’re decidedly more boyish and high-school looking here. The girls have longer hair and softer faces.
Supergirl artist Jim Mooney drew this issue, his first crack at the Legion in the many years since Supergirl tried out.