The Casebook of Sherlock Holmes contains Conan Doyle's last twelve stories about his great fictional detective. Compared with earlier collections these tales are darker, exploring such themes as treachery, mutilation and the terrible consequences of infidelity, and containing such gothic touches as a blood-sucking vampire and crypts at midnight.

With an Afterword by David Stuart Davies, a Fellow of the Royal Literary Fund, and an authority on Sherlock Holmes. He has written the Afterwords for all the Collector's Library Holmes volumes.