Look down into the streets, the buildings, the parks.

There is your battleground. Down there is the enemy - an enemy who wears no uniform.

He walks behind you in the street, sits with you when you eat, and perhaps swims beside you in a public pool. He may ask you for a light, bow you into a hotel, sell you a flyer, or in another form, leave the smell of perfume on your pillow.

The enemy is young and old, male and female, and he is everywhere. Could such a situation arise - or has it arisen? In this exciting story of the future, the author depicts a world at war. An undercover war, so skilfully manipulated that sixty per cent of the population is unaware of its existence. Yet, daily, the casualty figures climb higher and higher.

Can you say that such a war is impossible? Can you say when you have this all-action novel, that it has not already begun?