With the winter solstice just three months away, the Pure-blooded remnants are desperate for a plan that will get them into the relocated pyramid in time. But when scouts on a reconnaissance mission into the New Territory stumble across a cave that holds some of their missing sisters, Jackson and Paul spearhead an effort to get them back-and in the process discover that a lot more than just the island's topography has changed. Meanwhile, Hunter has returned with some added features of his own, believing that he might just have the answer to their imprisonment buried in his subconscious. But can he and Daniel meet up with the others in time? Or will the island's new (or perhaps much, much older) inhabitants prove to be just another move on a multidimensional chessboard over which the game to free Abaddon has been playing out across the ages? An epic showdown between the forces of Light and Darkness will not only determine the fate of the island and all those trapped on it but could also set the course for all of mankind in this wild, action-packed final installment of the Progeny trilogy.