Whirling silently through space, satellite cameras pick up a suspicious new Soviet missile complex which at all costs must be properly identified. The mission is carefully planned and carefully rehearsed. The latest and the fastest MiG, which a defecting Soviet pilot has conveniently landed in the West, is to fly at a treetop level until well into Soviet airspace and on course for the target. And the return journey? Well, that's up to Quiller.

Quiller fans will also enjoy THE KOBRA MANIFESTO, THE NINTH DIRECTIVE and THE QUILLER MEMORANDRUM.