Casebook of the Black Widowers has 182 pages.
Tales of the Black Widowers has 224 pages.
Banquets of the Black Widowers has 212 pages.
The Return of the Black Widowers has 304 pages.
Puzzles of the Black Widowers has 253 pages.
The Casebook of Solar Pons has 281 pages.
The Black Arrow has 242 pages.
The Black Mountain has 183 pages.
The Black Gryphon has 464 pages.
Black Easter has 165 pages.
Black - novel - has 432 pages.
From Black Rooms has 368 pages.
The Black Prism has 640 pages.