'Amy, wait till you hear this...' I hold my breath. 'What?' I say. 'Last night someone left a baby on our doorstep.' This is it, I think. No going back now. 16-year-old Amy is used to keeping secrets - Mum's illness, her runaway sister, her ex-boyfriend. But she has one secret that can't be kept. Now she has two choices: tell the truth about the abandoned baby, or keep quiet...for ever.