The Hearing Trumpet by Leonora Carrington (1976)

I just smile and shake my head every time I think of this extraordinary book. The plot? A woman in her nineties is bundled into a rather bizarre nursing home and manages to trigger something like the apocalypse. Carrington, who died just last year, was a surrealist artist who lived much of her life in Mexico and The Hearing Trumpet is packed with symbolism where nothing is quite as it seems. But that doesn't get in the way of a rollicking read that builds to a crescendo unlike anything else I've ever read. Absurd, fantastic and very much recommended.