The Riddle of the Sands is a 1903 novel by Erskine Childers. The book, which enjoyed immense popularity in the years before World War I, is an early example of the espionage novel and was extremely influential in the genre of spy fiction. It has been made into feature-length films for both cinema and television. The novel "owes a lot to the wonderful adventure novels of writers like Rider Haggard, that were a staple of Victorian Britain". It was a...

Their younger sister Margaret watches in bewilderment as Marianne and Elinor experience the joys and heartaches of early adult life. Is Marianne too warm or is Elinor too cold? Whose example should Margaret follow?

Introduces the megalodon, a prehistoric shark that was up to sixty feet long, and describes how scientists learned about this animal through fossils found around the world.