The Yellow Feather Mystery has 192 pages.
The Mystery of the Yellow Room has 236 pages.
The Feather Men has 256 pages.
Scarlet Feather has 560 pages.
The Devil's Feather has 416 pages.
Feather Boy has 288 pages.
The Listerdale Mystery has 256 pages.
The Solitaire Mystery has 351 pages.
The Mystery Play has 76 pages.
A Caribbean Mystery has 256 pages.
The Regatta Mystery has 229 pages.
An Excellent Mystery has 192 pages.
The Bungalow Mystery has 210 pages.