about 800-900 pages
Ancestors of Avalon has 363 pages.
The Guns of Avalon has 180 pages.
Priestess of Avalon has 382 pages.
Mutants in Avalon has 80 pages.
Lady of Avalon has 464 pages.
Lud-in-the-Mist has 319 pages.
Pearl in the Mist has 384 pages.
Swords in the Mist has 190 pages.
The Land of Mist has 294 pages.
Fire in the Mist has 304 pages.
The Sons of Avalon Saga has 304 pages.
"Soldier of the Mist" by Gene Wolfe has approximately 384 pages.