A collection of short stories, by the creator of Sherlock Holmes, including the future war story Danger! and the science fiction tale The Horror from the Heights, The Fall of Lord Barrymore, The Prisoner's Defence, and The Surgeon of Gaster Fall. The title story covers 49 pages and was written about eighteen months before the outbreak of The First World War, the author's intention being to direct public attention to the great danger which threatened this country. . In an introduction, the author makes the case for investing in a Channel Tunnel -- something he would love to ride through today on the Eurostar train!