A group of children that all have a physical disability solves mysteries together from their secret tree house.
The Mystery of the King of Spades
8 episodes
The Downfall of the King
The Mystery of the Chinese Princess
Daan de Groot
Tom van Hulle
Timo Verbeek
Ruben Heesters
Leonie Elbert
Charlotte Heesters
Guusje Stratman
Roxanne
Roos van de Wiel
Lucienne Zumpolle
Eefje Paddenburg
1977
2016
2014
2015
1983
1988
1967
1960
1985
1976
1975
2019
1979
2006
2001
1987
1999
1995
1994
2005
2010
1997
1974
1992
2000
1980
2002
Sam de Graaff