Barefoot in the Head - Brian Wilson Aldiss

''An extraordinary book'' The Listener''An extremely urgent criticism of the present'' Daily TelegraphThe earth is recovering from the Acid Head War, in which hallucinogenic chemicals were the primary weapon. Many humans are now suffering from delusions and are unable to tell the real from the imaginary. When a man named Colin Charteris tries to make sense of the drugged-out world, he is taken as the new messiah. As he descends into paranoid visions, he begins to believe this himself.