The Crystalloid Compound was, as the name suggests, a prison compound used by the Crystalloids to hold some Rubberoids hostage.
The doorway was guarded by a dragon-like beast.
Superboy and Krypto easily entered the prison and freed the hostages, and Krypto even made a new friend with the dragon-like beast.[2]
Appearance[]
- King Superboy (1968)
References[]
- ↑ As seen in The Adventures of Superboy episode King Superboy (1968).
- ↑ As seen in The Adventures of Superboy episode King Superboy (1968).