It was Danielle and Gracie's secret. A teenage adventure. A 1,000 mile drive along the spine of the Rocky Mountains to visit Danielle's boyfriend in Montana. Their parents were never to know. But now the girls have simply vanished. The only person who knows they're missing is Danielle's boyfriend. He persuades his father - a disgraced, suspended cop - to search for them. But he too simply disappears. Now it's up to rookie cop, war widow and single mother Cassie Dewell to find them. Her investigation will introduce her to ...

The Highway 2016, St. Martin's Griffin, New York

ISBN-13: 9781250121936

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The Highway 2015, MacMillan Audio, New York

ISBN-13: 9781427266125

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The Highway 2014, St. Martin's Press, New York

ISBN-13: 9780312546892

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The Highway 2014, Head of Zeus, London

ISBN-13: 9781781852699

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The Highway 2013, Minotaur Books, New York

ISBN-13: 9780312583200

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The Highway 2013, Wheeler Publishing

ISBN-13: 9781410460486

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The Highway 2013, Head of Zeus, London

ISBN-13: 9781781851142

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The Highway 2013, Head of Zeus, London

ISBN-13: 9781781851159

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The Highway 2013, MacMillan Audio, New York

ISBN-13: 9781427230980

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The Highway 2013, MacMillan Audio

ISBN-13: 9781427236593

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