Madeline - Season 3 - Eps 26: Madeline at the Flea Market
When Madeline and the girls find some collectibles from the 1800's in the attic of the Old House, they decide to set up a booth at The Flea Market and unwittingly sell Pepito's father's Ambassador ring (which Madeline tracks down using her detective skills).
About Madeline

Title: Madeline
First Air Date: 1988-09-09
Last Air Date: 2002-11-11
Status: Ended
Rating: 5.8/10 (from 31 votes)
Language: EN
Seasons: 3
Total Episodes: 67
Network: ABC Disney Channel ABC Family
Genres: Kids, Animation, Family
Production Companies: Cookie Jar Entertainment, DiC Entertainment, Disney Television Animation, Family Channel
Synopsis
A young girl embarks on a series of misadventures, causing her friends and teachers to be worrisome. Based on the children's books by Ludwig Bemelmans.
Cast

Andrea Libman
Madeline (voice)

Stevie Vallance
Miss Clavel / Genevieve (voice)

French Tickner
Lord Cucuface (voice)

Christopher Gaze
Narrator (voice)