The mystery of the Yosemite National Park

During a visit to Yosemite National Park, the fall ??? into a vortex strange events. First, they reported a boy of enigmatic traces of blood that suddenly disappear, Justus is obviously shot by a mentally retarded young people and a remote mountain hut harbors a horrible secret. The junior detectives get to do all sorts to get the mysterious events on the track.
After quite a long time is this ??? - result once again a great series episode before, because the action is presented really exciting and rich in content, but at no time affects overweight. Rather, it is really fun to follow the story and the final resolution can be quite impressive, but it is unfortunately an idea quite early on in parts of the attentive listener.
The spokesman benefits, as of course, the entire radio play, have the usual high "Europe" quality and offer no starting points for criticism.
Conclusion: good radio play that you can listen to every now and then.