Este décimo volume é totalmente dedicado aos Arquivos Secretos, uma colecção de 12 contos policiais, originalmente publicados na Strand magazine entre 1921 e 1927. Foram os últimos escritos por Sir Arthur Conan Doyle.
Histórias que compõem o volume:
A Pedra Mazarino; A Ponte de Thor; O Homem que Andava de Rastos; O Vampiro de Sussex; Os Três Garridebs; O Cliente Ilustre; As Três Empenas; O Rosto Lívido; A Juba do Leão; Mr. Josias Amberley; A Inquilina de Rosto Coberto; O Velho Solar de Shoscombe.
Sir Arthur Ignatius Conan Doyle was a Scottish writer and physician. He created the character Sherlock Holmes in 1887 for A Study in Scarlet, the first of four novels and fifty-six short stories about Holmes and Dr. Watson. The Sherlock Holmes stories are milestones in the field of crime fiction.
Doyle was a prolific writer. In addition to the Holmes stories, his works include fantasy and science fiction stories about Professor Challenger, and humorous stories about the Napoleonic soldier Brigadier Gerard, as well as plays, romances, poetry, non-fiction, and historical novels. One of Doyle's early short stories, "J. Habakuk Jephson's Statement" (1884), helped to popularise the mystery of the brigantine Mary Celeste, found drifting at sea with no crew member aboard.