The HikerIn the wilderness, its kill or be killed MISSING When Gemma Kline is reported missing after setting off on a solo hike in the remote Pennines, her sister, Sarah, is dumbfounded. How can someone disappear without a trace? PRESUMED Travelling to the isolated town where Gemma was last seen, Sarah discovers its not the first time a young woman has vanished from the hills in mysterious circumstances. As she digs deeper, it quickly becomes apparent that