In this sequel to "The Jesuit Papers," Nick's ex-wife returns with a boy she claims is Nick's son. Hurt and disillusioned, Kat runs into the arms of her former lover, Shahin. Together, they travel the Middle East, seeking to unravel an ancient mystery that has shaped the religious beliefs of millions. Immersed in the cauldron of unrest that threatens the political stability of that region, Kat must use all her wits to escape unscathed and set her future with Nick to rights.