|Behind the scenes|
|First Appearance:||The Broken Ear|
|Last Appearance:||The Broken Ear|
Ernestine is a minor character seen in The Broken Ear. She works as a housekeeper and cleaner for Professor Euclide, the one who found Jacob Balthazar's lost parrot, Polly, and returned it to Tintin, answering an advertisement he listed in the paper.