Ten of the best snakes in literature

At the Guardian, John Mullan named ten of the best snakes in literature.One entry on the list:The Poisonwood Bible, by Barbara KingsolverZealous Baptist Nathan Price takes his family to the Belgian Congo where he works as a missionary. Someone starts planting snakes in the homes of those who know them. One morning they find a curled-up green mamba and, as it slithers off, hear a shriek from Ruth