by Marie Groët
The most famous bogeyman in the Hauts-de-France mostly keeps children from getting too close to the edges and shores of the marsh or from leaning into the boats.
Yet in every legend there is a bit of truth and that of Marie Groët goes back several centuries and has several versions of which here is one of the best known.
![Children Bacôve Marais Audomarois](https://www.tourisme-saintomer.com/app/uploads/tourisme-saintomer/2023/01/thumbs/Enfants-Bacove-Marais-Audomarois-©-Loeil-de-Iannick-Tourisme-en-Pays-de-Saint-Omer-7-640x854-crop-1674053384.jpg)