Back of Book says: Eight famous scientists answered the ad. Eight left England for Australia. Nove arrived or were heard from again. The ninth who answered was Bentall, complete with a scientific cover and a girl named Marie, a secret agent like himself. From the moment they were kidnapped at gunpoint from their Fiji hotel, they were plunged into a fantastic plot for word domination, played out on a secret missile site on a remote Polynesian island.
I say: Typical Maclean thriller - plenty of movement, gripping tension, an ingenious plot.