Four kids - Eugen, Wrigley, Bäschteli and Eduard - leave for an adventure around Switzerland, searching for the fabulous treasure of Titicaca Lake, discovered by Fritzli Bühler.
Eugen
Wrigley
Bäschteli
Eduard
Vater Eugen
Vater Wrigley
Fritzli Bühler
Vater Bäschteli
Tante Melanie
Polizeibeamter Luzern
2013
2020
2005
2000
1997
2023
2019
2014
2010
2015
1994
1998
1985
2022
2008
2021