At the time of this story, Supergirl had her own series in Action Comics, but was still living in an orphanage, forbidden by Superman to use her powers publicly. He was afraid she would give away her identity, or his. Determined to prove herself, Linda travels back in time and heads to Smallville, in Adventure 278 (Nov 60).
She reveals her identity to Ma and Pa Kent, and enlists their aid in attempting to fool Clark, figuring that if she can conceal it from Superboy, Superman will have to agree she has proved herself.
She does a pretty good job of it, and succeeds in fooling Superboy the first time they meet. It’s pesky Lana Lang that has the suspicions, but a little aid from Krypto and Ma Kent helps Linda con her as well.
Supergirl figures she has it all down pat, but I guess this makes her less cautious, and she makes a completely stupid mistake.
Distressed, she heads back to her own time, concluding that she is not “ready” to be adopted. Which is kind of awful.
Janu winds up becoming Congorilla in this story. He resents Congo Bill getting all the ape action, so puts on the ring himself.
He ties his body to a tree, so the mind-transferred gorilla will not run off with it, but he gets mistaken for a missing boy, and in the gorilla body has to chase his human body.
This could be fun, but the way Janu’s speech (or thoughts) are written are so idiot-ish that there is little fun to be had at his expense. Nor is the art on the story particularly appealing.
But it was enough of a change of pace that I felt like including this story.