These Three Remain has 280 pages.
The Three Palladins has 244 pages.
The Three Impostors has 215 pages.
Three to Get Deadly has 304 pages.
The Clockwork Three has 400 pages.
Three Mysteries has 38 pages.
Three Loves has 591 pages.
Witches Three has 423 pages.
Three Stations has 256 pages.
Skylark Three has 246 pages.
Curtains for Three has 247 pages.
Three for the Chair has 183 pages.
If you meant the book three cups of tea, then it has 354 pages.