Agency:.Produced by Cité-Amérique Inc., scopas medien AG and Pedri Animation BV in co-production with the National Film Board of Canada and in association with la Société Radio-Canada, The Canadian Broadcasting Corporation, ZDF and KRO. Agency - French program:.Animation and Youth Studio.

Script, Anne-Marie Perrotta, Tean Schultz ; principal director, Co Hoedeman ; director, François Perreault ; producer, Louise Richard, Jan Bonath, Paul Mathot, Julie Roy ; executive producer, Vivianne Morin, Jan Bonath, Peter Mansfelt, René Chénier.

Recorded 2008.

Ludovic is very excited, since Violet is coming to his house to spend the night. He has so many fun things planned, but soon Violet starts missing her parents and gets sad. And then where is the handkerchief her mother gave her before she left? Will Ludovic, Violet and the magnifying glass be able to solve this mysterious disappearance?

Mode of access: World Wide Web.

Description based on online resource; title from title screen (National Film Board of Canada, viewed 2023-08-10).