Invisible Muriel is the fourth episode of Season Two and the seventeenth episode in total. It aired on January 19, 2001. It follows Courage Meets the Mummy.


A government facility captures Muriel after Courage gives her a magical gem that turns her invisible. The cure must be found in time to save her.



  • When Eustace is invisible the second time, Dr. Vindaloo tells him not to wear any clothes (except his hat and glasses). But when he was turned into a gold statue, he's wearing boxers possibly to cover up his lower regions due to censorship.
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