Tales of missing children have always held a terrible fascination. Celtic folklore chilled the bones of many a superstitious new mother with stories of babies stolen from their beds by envious fairies, changelings left in their place. These days, when a child disappears the media grab us by the throat and won't let us go. These disappearances haunt us for days, weeks, years. In the dark of a Sydney winter, Hilary Bell's disquieting and downright...