When she was gone - S. A Dunphy

When criminologist David Dunnigan receives the shocking delivery of one of his niece Beth's shoes, it reignites the eighteen-year-old investigation into her disappearance - which Dunnigan has always blamed himself for. But is he ready for what he might find?
New evidence links Beth's abduction to an antiquated psychiatric hospital, and on to an Inuit village in the frozen north of Greenland where the parents of Harry, a homeless boy Dunnigan and his friend Miley rescued from the streets, may have been trafficked.
Can Dunnigan survive the hunt, and will he find Beth after all this time?