The Rim of the Unknown has 291 pages.
Rim - novel - has 357 pages.
A Feast Unknown has 286 pages.
The Unknown Terrorist has 325 pages.
The Unknown - Animorphs - has 166 pages.
The Unknown Shore has 288 pages.
Sender Unknown has 258 pages.
The Unknown Zone has 174 pages.
The Fringe of the Unknown has 208 pages.
500
A rim typically contains 500 sheets of paper, which equals 1000 pages when counting both sides.
The Rim of the Unknown was created in 1972.
The Unknown Witches of Oz has 240 pages.