Graeme Drury is seventeen. He is rather an ordinary-looking person of average height. He dresses casually and well and gets along fine with his classmates and friends. In fact the typical all-rounder.

The change begins gradually. More and more he feels that people are ignoring him. Why? Waitresses, tram conductors, even his parents and girl friend, are looking right through him as if they can hardly see or hear him.

And as he becomes indistinct to them, they and their world become grey and faint to him. Is he going mad? What's going on?

In this disturbing story Lee Harding has moved a little away from the straightforward science fiction novels with which he has made him name to create a contemporary hero with whom we can identify as he grapples with his psychological adventure.