The Lost World is a novel released in 1912 by Arthur Conan Doyle concerning an expedition to a plateau in South America where prehistoric animals (dinosaurs and other extinct creatures) still survive. The character of Professor Challenger was introduced in this book. Interestingly, for a seminal work of dinosaur-related fiction, the animals only occupy a small portion of the narrative. Much more time is devoted to a war between early human hominids and a vicious tribe of ape-like creatures.

Sir Arthur Ignatius Conan Doyle KStJ, DL (22 May 1859 - 7 July 1930) was a Scottish writer and physician, most noted for creating the fictional detective Sherlock Holmes and writing stories about him which are generally considered milestones in the field of crime fiction.

He is also known for writing the fictional adventures of a second character he invented, Professor Challenger, and for popularising the mystery of the Mary Celeste. He was a prolific writer whose other works include fantasy and science fiction stories, plays, romances, poetry, non-fiction and historical...

The Hound of the Baskervilles is the third of the crime novels written by Sir Arthur Conan Doyle featuring the detective Sherlock Holmes. Originally serialised in The Strand Magazine from August 1901 to April 1902, it is set largely on Dartmoor in Devon in England's West Country and tells the story of an attempted murder inspired by the legend of a fearsome, diabolical hound of supernatural origin. Sherlock Holmes and his companion Dr. Watson investigate the case. This was the first appearance of Holmes since his apparent death in "The Final Problem," and the success of The Hound of the...

In December 1878, Mary's father telegraphed her upon his safe return from India and requested her to meet him at the Langham Hotel in London. When Mary arrived at the hotel, she was told her father had gone out the previous night and not returned. Despite all efforts, no trace has ever been found of him. Mary contacted her father's only friend who was in the same regiment and had since retired to England, one Major John Sholto, but he denied knowing her father had returned. The second puzzle is that she has received six pearls in the mail from an anonymous benefactor, one per year since 1882...

The Valley of Fear is the fourth and final Sherlock Holmes novel by Sir Arthur Conan Doyle. It is loosely based on the Molly Maguires and Pinkerton agent James McParland. The story was first published in the Strand Magazine between September 1914 and May 1915. The novel is divided into two parts: in the first, Holmes investigates an apparent murder and discovers that the body belongs to another man; and in the second, the story of the man originally thought to have been the victim is told.

Challenger sends telegrams asking his three companions from The Lost World - Edward Malone, Lord John Roxton, and Professor Summerlee - to join him at his home outside London, and instructs each of them to 'bring oxygen'. On arrival they are ushered into a sealed room, along with Challenger and his wife. In the course of his researches into various phenomena, Challenger has predicted that the Earth is moving into a belt of poisonous ether which, based on its effect on the people of Sumatra earlier in the day, he expects to stifle humanity. Challenger seals them in the room with cylinders of...

The Lost World is a novel released in 1912 by Sir Arthur Conan Doyle concerning an expedition to a plateau in the Amazon basin of South America where prehistoric animals (dinosaurs and other extinct creatures) still survive. It was originally published serially in the popular Strand Magazine and illustrated by New-Zealand-born artist Harry Rountree during the months of April-November 1912. The character of Professor Challenger was introduced in this book. The novel also describes a war between indigenous people and a vicious tribe of ape-like creatures.

A Study in Scarlet is an 1887 detective novel by British author Arthur Conan Doyle. Written in 1886, the story marks the first appearance of Sherlock Holmes and Dr. Watson, who would become two of the most famous characters in popular fiction. The book's title derives from a speech given by Holmes, an amateur detective, to his friend and chronicler Watson on the nature of his work, in which he describes the story's murder investigation as his "study in scarlet" "There's the scarlet thread of murder running through the colourless skein of life, and our duty is to unravel it, and isolate it,...

At the age of twenty, young Alleyne, son of Edric, leaves the Catholic abbey where he has been raised-intelligent, skilled, and well-liked, though sheltered and naive-and goes out to see the world, in accordance with the terms of his father's will. The same day, the abbot banishes John of Hordle for worldly behavior: great appetite, teasing, and flirting. At the Pied Merlin inn, they make friends with veteran archer Sam Aylward who has returned to England from France to recruit for the White Company of mercenaries. Aylward has brought a request for Sir Nigel Loring of Christchurch to take...

The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle. Doyle wrote four novels and 56 stories starring the fictional detective.