Main Characters
- Sherlock Holmes
- Dr John Watson
- Mycroft Holmes
- Mr Melas
- Harold Latimer
- Paul Kratides
- Giggling man-William Kemp
Locations
- 221b Baker Street
- Diogenes Club
- Whitehall, London
- Pall Mall, London
- Wandsworth Common
- The Myrtles, Beckenham
- Buda-Pesth
- Scotland Yard
Messages and Rituals
Artifacts and Curiosities
Sayings
Character Illustrations
Deductions