Kate's world falls apart when her teenage son drowns in the waters by his school. She’s convinced it wasn’t just a tragic accident, but no one will listen. Then, six years later, Kate unearths Michael’s lost diary and realises she may finally be able uncover what really happened that night. But as she delves deeper, she begins to realise that she didn’t really know her son – or the people in his life – at all. And that, sometimes, secrets are better left submerged… A absorbing, emotionally-charged and addictive page-turner that will keep you gripped into the dark hours, perfect for fans of Linda Green and Teresa Driscoll.