Doug Johnstone 
Jump 

Struggling to come to terms with the suicide of her teenage son, Ellie lives in the shadows of the Forth Road Bridge, lingering on its footpaths and swimming in the waters below. One day she talks down another suicidal teenager, Sam, and sees for herself a shot at redemption, the chance to atone for her son's death. But even with the best intentions, she can't foresee the situation she's falling headlong into – a troubled family, with some very dark secrets of their own. From #1 bestselling author of Gone Again, The Jump is a hugely moving contemporary thriller, and a stunning portrait of an unlikely heroine.