THE CASE, IN BRIEF
A mystery unfolds.
A professor’s unsettling behaviour changes after a laboratory experiment.
This catalog note identifies the work and its place in the Holmes bibliography. For plot details beyond this concise description, consult the complete original text.
REFERENCE NOTESource and summary ＋
Case summary
A professor’s unsettling behaviour changes after a laboratory experiment.
ClassificationOriginal work by Sir Arthur Conan Doyle, included in The Case-Book.
Source materialThe complete reference PDF is available from the archive’s Downloads page.