The Stone Circle is by Anthony Tuck. The paperback has 256 pages. It is about children discovering evil near an archeological dig.
The Tenth Circle has 387 pages.
The First Circle has 741 pages.
The Black Circle has 178 pages.
The Matarese Circle has 601 pages.
Races of Stone has 192 pages.
A Song of Stone has 280 pages.
Solomon's Stone has 224 pages.
Chronicle in Stone has 280 pages.
Stone Spring has 496 pages.
The Stone Diaries has 361 pages.
A Judgement in Stone has 191 pages.
The Stone Key has 1000 pages.