When a pearl in the collectionof the National Museum of Poznań, Claude Monet's "Beach in Pourville", disappears and Aunt Julki is falsely accused of the theft, two children must find the picture and identify the real thief.
2025
2013
1990
2015
2009
2001
2024
1994
2020
1988
2007
2021
1999
2016
