'A clammy hand pressed Laura down to her knees beside Jacko's bed. It was the hand of terror, nothing less.'
Jacko is fighting for his life, being sucked dry by the sinister Carmody Braque. Laura hopes to save him by "changing over". But what further supernatural dangers will that risk?
And what of the other "changeovers" which threaten her life: her mother's new relationship with the charming Chris Holly? And her own with the mysterious, intense Sorry Carlisle?
Winner of the Carnegie Medal.