I have twice abandoned my attempt to write this. The first time happened when I reread Nigel Balchin’s novel, Darkness Falls from the Air, which I had admired to distraction many years ago, partly because I so loved the poem from which the title is taken (Thomas Nashe, ‘In Time of Pestilence’), partly because it seemed to me a brilliant account of what it must have been like to be in London when it was being bombed during the Second World War. This time round, however, I noticed the extent to which the novel is bedevilled with occasional but regular anti-Semitic remarks of a kind which become even more horrible when one remembers it was published in 1942. Although I tried to pretend to myself that the problem was not systemic but merely cosmetic, after a while I decided my excuse wouldn’t wash any more. This is a poison which infects the whole novel, not just the parts.