In ‘The Secret of Balthasar Castle’, the first cinematic adventure of the Europa-Park mascots, Ed, Edda and their friends have to solve the riddle of the mysterious castle. The five friends encounter and master some exciting situations as the adventurous treasure hunt takes them through the mysterious catacombs of Balthasar Castle. It’s no question that Ed, Edda, Eurofant, Böckli and Louis have to show a lot of courage here, as only together can they decipher the great secret.