What They Knew

DI Clare Mackay starts the new year with a death…

It is the stroke of midnight on Hogmanay when Alison Reid admits a caller to her home. When her death is later reported, DI Clare Mackay attends the scene. The initial evidence does not rule out murder, but it’s not possible to say for certain if foul play was involved. Yet when the pathologist informs Clare about a post mortem of a young woman found in the Kinness Burn, and with some similarities to Alison’s case, it seems there’s a strong chance that there’s a killer on the loose in St Andrews.

Clare and her team will have to look past the obvious conclusions and delve deeper into the lives of the victims to get to the truth. But who else risks meeting the same fate while the clock is ticking?

Don’t miss this compulsive new addition to the gripping DI Clare Mackay series from Bloody Scotland Scottish Debut Crime Novel 2020 shortlisted author Marion Todd.

Readers are loving What They Knew


‘....more twists, turns and page-turning action from what will soon be your favourite Tartan Noir detective.’ The Scottish Sun

‘Marion Todd does not disappoint... A great read that kept me guessing until nearly the end’ Joy Kluver, author of Last Seen

‘Todd has found a great character in Clare Mackay and both women have definitely been added to my 'must read' list. A highly entertaining read.’ Crimesquad

‘Todd keeps getting better and better... One of my favourite discoveries of recent years’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐

‘This is the fourth in what has become one of my favorite police procedurals. It’s like taking a trip to Scotland and hanging out with a savvy detective and her team as they investigate the latest murder.’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐

‘Another excellent book in the Clare Mackay series. I was hooked from the first page, plenty of twists and turns... If you have never read any of this series or any by this author you won’t regret reading them, you are in for a treat. I can’t wait for the next instalment’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐

‘Marion Todd never fails to deliver with this series.’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐

‘What They Knew is another cracking read, the tension really building in the latter half of the book. I thoroughly enjoyed it and hope that Todd sustains her current rate of production because I can't get enough of the DI Mackay series.’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐

‘I started reading it immediately and was straight back in the world of DI Clare MacKay, just like visiting an old friend. If gripping crime / police procedurals are your thing you will love this series’ NetGalley review ⭐ ⭐ ⭐ ⭐ ⭐