What is the secret of the old castle on the hill, and why are the locals so afraid of it? When flashing lights are seen in a distant tower, Philip, Dinah, Lucy-Ann, and Jack decide to investigate?and discover a very sinister plot concealed within its hidden rooms and gloomy underground passages.

Marooned far from the mainland on a deserted coast, Philip, Dinah, Lucy-Ann and Jack find themselves playing a dangerous game with an unknown enemy. Will they escape with Bill, and their lives?

While on a river cruise through an ancient desert Philip, Dinah, Lucy-Ann, and Jack--along with their parrot Kiki--find find themselves trapped in a forgotten temple that has remained undesturbed for seven thousand years.