Medusa's Pawn Shop was owned by Madame Medusa and her associate Mr. Snoops in New York City. The mice Bernard and Bianca investigating Penny's disappearance here, surprising the owner phoning to Mr. Snoops and learns that she had kidnapped the little girl to find an ancient diamond. Angry that her purpose was not realized and by Snoops's incompetence, Medusa returns to Devil's Bayou, unaware she was spied on by the mice.
After her defeat, the pawn shop was probably shut down because Penny informed both the authorities and media on Medusa's sinister activities.