FREEThe Sign of the Four
by Doyle, Arthur Conan, 1859-1930
"The Sign of the Four" by Arthur Conan Doyle is a detective novel published in 1890. When Mary Morstan seeks Sherlock Holmes's help regarding her missing father and mysterious annual gifts of pearls, the investigation leads to a buried treasure, a vengeful one-legged man, and murder. Holmes and Watson must pursue suspects through London, unraveling a decades-old conspiracy that stretches from India's colonial past to the Thames. The case tests both Holmes's deductive powers and Watson's loyalty to their intriguing client. (This is an automatically generated summary.)
Automated conservative edition review 2026-10-20T07:13:17.928Z (historical-original-en-v2), Philippines scope. English historical author Doyle, Arthur Conan, died 1930; original-language author allowlist, matching sole EPUB/catalog creator, no credited contributors, no extra artwork, no flagged editorial/translation/copyright cues in isolated text. US public-domain source label and retained Gutenberg license; EPUB CRC passed. This is rule-based screening, not a worldwide rights opinion or a claim of manual review. Source: https://www.gutenberg.org/ebooks/2097; Philippine term reference https://www.ipophil.gov.ph/copyright/. EPUB SHA256 966338f996fb14b86d3795ed017b39f2cec57c20dc9f5fd04231653f03b2ce35; RDF SHA256 a163cab0116fa9c18ad100c944540e89de7e5e5aa3b10595b422100588492905.
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