The Ordeal of Gilbert Pinfold is an English version of Fear and Loathing in Las Vegas. Taking a holiday cruise, Pinfold consumes an unwise combination of alcohol and drugs and enters a private world of paranoid hallucination. The book is based (according to Wikipedia) on a voyage to Ceylon made by the author in 1954. He called it 'my barmy book'.
Waugh is a five star stylist, and there are some laughs, but ultimately I found Pinfold's chemical dystopia rather claustrophobic. There is also perhaps something lacking in terms of narrative tension: the hero goes on a cruise, hallucinates, and returns home. At the end, there is an 'oh darling, it's all been a terrible dream' sequence with his wife. As a story, it doesn't fly in the way that, for example, Brideshead does.
No complaints about Michael Cochrane's reading in this audio version, which is done with a good deal of elan.