The ISBN of The Angel of Darkness is 0-679-43532-8.
The ISBN of A Darkness at Sethanon is 0385192150.
The ISBN of The Lake of Darkness is 0091408105.
The ISBN of Blooms of Darkness is 9789650714161.
The ISBN of Fear the Darkness is 1844163261.
The ISBN of Boy in Darkness is 0340683236.
The ISBN of Chasing Darkness is 0743281640.
The ISBN of She Is the Darkness is 0-8125-5533-3.
The ISBN of Swallowing Darkness is 978-0345495938.
The ISBN of The Great Darkness Saga is 9781401229610.
The ISBN of Sidney Sheldon's After the Darkness is 0061728306.
The ISBN of Walk Through Darkness is 0385499256.
The ISBN of Darkness Before Dawn is 0689830807.