Following a scalding row with her mother, fifteen-year-old Holly Sykes slams the door on her old life. But Holly is no typical teenage runaway: a sensitive child once contacted by voices she knew only as “the radio people,” Holly is a lightning rod for psychic phenomena. Now, as she wanders deeper into the English countryside, visions and coincidences reorder her reality until they assume the aura of a nightmare brought to life.For Holly has caught the attention of a cabal of dangerous mystics — and their enemies. But her lost weekend is merely the prelude to a shocking disappearance that leaves her family irrevocably scarred. This unsolved mystery will echo through every decade of Holly’s life, affecting all the people Holly loves — even the ones who are not yet born.A Cambridge scholarship boy grooming himself for wealth and influence, a conflicted father who feels alive only while reporting from occupied Iraq, a middle-aged writer mourning his exile from the bestseller list — all have a part to play in this surreal, invisible war on the margins of our world. From the medieval Swiss Alps to the nineteenth-century Australian bush, from a hotel in Shanghai to a Manhattan townhouse in the near future, their stories come together in moments of everyday grace and extraordinary wonder.