It is a dark time for clairvoyants. Scion is in league with the Rephaim, an extraordinarily powerful, otherworldly race, who wish to make humans their slaves.

In an unprecedented feat of bravery, Paige Mahoney has succeeded in leading a mass break-out of the brutal camp, Sheol I, where she and other clairvoyants have been systematically imprisoned.

Paige is desperate to reach the safety of the London underworld, but the ruthless leader of the Rephaim, Nashira Sargas, is not likely to let her escape so easily…