Hidden has 160 pages.
The Littlest Hitler has 224 pages.
Hitler's War has 926 pages.
Hitler Sites has 224 pages.
The Hidden Child has 400 pages.
Her Hidden Children has 189 pages.
Hidden Warrior has 551 pages.
A Hidden Ulster has 540 pages.
The Hidden - Animorphs - has 121 pages.
The Hidden Universe has 134 pages.
The Hidden Family has 303 pages.
The Hidden Staircase has 210 pages.