Luke Challenger is one of the few people who know the secret location of the Lost World, a plateau deep in the Brazilian rainforest where dinosaurs still live, so when his mother disappears while searching for it, Luke persuades his father to let him help find her. Luke and his friend Nick are soon being pursued by would-be assassins and a mysterious clult who are bent on destroying them. Will Luke be able to foil their plans and find his mother? Suggested leve: intermediate, secondary.