The ISBN of Hunter in the Dark is 1550050567.
The ISBN of Fossil Hunter is 9780340618035.
The ISBN of Hunter of Worlds is 0879973145.
The ISBN of Conan the Hunter is 0-812-53531-6.
The ISBN of The Jaguar Hunter is 0-87054-154-4.
The ISBN of Hunter's Moon is 0-04-440301-1.
The ISBN of When It Was Dark is 978-1437364293.
The ISBN of A Dark Victory is 1862914060.
The ISBN of A Dark Winter is 1862913684.
The ISBN of The Dark Arena is 0345441699.
The ISBN of Plowing the Dark is 0374234612.
The ISBN of The Dark Imbalance is 9780732268374.
The ISBN of In the Winter Dark is 0869140450.