The Poison Belt
 The Poison Belt was the second story a novella that Sir Arthur Conan Doyle wrote about Professor Challenger. Written in 1913 roughly a year before the outbreak of World War I much of it takes place in a single room in Challenger's house — rather oddly given that it follows The Lost World a story set in the jungle. This would be the last story written about Challenger until the 1920s by which time Doyle's spiritualist beliefs had begun to influence his writing.