Under the Net has 286 pages.
Islands in the Net has 348 pages.
Heaven's Net is Wide has 641 pages.
Under the Eagle has 256 pages.
Under Compulsion has 220 pages.
Under Heaven has 567 pages.
Under a Velvet Cloak has 228 pages.
Dreaming Down-Under has 554 pages.
Wonder under Water has 215 pages.
Under the Jolly Roger has 528 pages.
A Nation under Our Feet has 624 pages.
Robbery Under Arms has 300 pages.
Trouble Under Oz has 256 pages.