Summary

Dinah, Philip, Jack and Lucy-Ann get on the wrong plane at an airport, and are embarked on another adventure, in a deserted valley surrounded by high mountains, where the men from the plane seem to be hunting a treasure.

Dinah, Philip, Jack and Lucy-Ann get on the wrong plane at an airport, and are embarked on another adventure, in a deserted valley surrounded by high mountains, where the men from the plane seem to be hunting a treasure.