Cian digs out an old favourite from the days of pulp magazine adventure and horror: a short story by Clark Ashton Smith from 1933 about a trip down a South American river that goes very, very wrong. If you enjoy chaps in pith helmets going to forbidden lost cities and learning Things Man Was Not Meant To Know, if you like seriously disgusting body horror, and if you like Triffids and other kinds of vile, vicious vegetation that like to feast on man, then look no further! There’s but a smidge of Cosmic Horror here, and perhaps a touch of Ancient Astronauts too. All in all, it’s an astonishingly unsettling, horrible and entertaining tale to listen to while you sit round your Christmas hearth. Cian downs a green tea during the telling of this tale, but feel free to have something stronger yourself, if you think your stomach can take it.