
by Arthur Conan Doyle · Oxford University Press España, S.A. · tapa blanda · ISBN 9780198355359

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«The Sign of Four» is the detective novel by Arthur Conan Doyle, published by Oxford University Press España in paperback (152 pages, in English).
In 1888, Mary Morstan comes to Sherlock Holmes and Dr Watson: since her father's disappearance she has received an anonymous pearl every year and a message summoning her to her unknown benefactor. The investigation leads to a treasure and a story of betrayals and murders; Holmes and Watson pursue the killer to unravel the mystery.
It is the second novel featuring Sherlock Holmes and belongs to the Rollercoasters collection from Oxford University Press.
Edition with a didactic approach, designed for young learners of English and for school reading.

Sir Arthur Ignatius Conan Doyle was a British writer and physician. He is best known for his four novels and fifty-six short stories about the fictional consulting detective Sherlock Holmes and his assistant Dr. Watson, which are milestones in crime fiction, and for his first work featuring Professor Challenger, The Lost World (1912), which gave its name to a subgenre of speculative fiction. He was a prolific writer who produced over 200 stories and articles, four volumes of poetry, and a number of works for the stage. He was knighted by King Edward VII in the 1902 Coronation Honours.
