Doomsday Plus Twelve has 230 pages.
After Doomsday has 128 pages.
Doomsday Deck has 193 pages.
To Outrun Doomsday has 159 pages.
The Doomsday Conspiracy has 416 pages.
a lot
Verdict of Twelve has 273 pages.
The Wind's Twelve Quarters has 303 pages.
Twelve Days of Terror has 330 pages.
Twelve Sharp - novel - has 320 pages.
Nebula Winners Twelve has 242 pages.
The Twelve Little Cakes has 384 pages.
The Clock Strikes Twelve has 248 pages.