Issue 4
Adventure Comics (1938-1983) #106
Supergirl flies to Superboy's time to see if she can protect her identity and prove to Superman she's ready to be revealed to the world.
Characters
Creators

From
Adventure Comics (1935-1983) Series
Supergirl flies to Superboy's time to see if she can protect her identity and prove to Superman she's ready to be revealed to the world.

From
Adventure Comics (1935-1983) Series