Shallow Grave by Karen Harper

The truth won't stay buried forever...

It's been four months since forensic psychologist Claire Britten last crossed paths with danger. Finally feeling she can catch her breath, together with her partner, criminal lawyer Nick Markwood, Claire has settled into a new role, volunteering with a support group for children stressed by domestic violence. But a leisurely field trip to a wildlife sanctuary turns deadly, leaving Claire to question whether the death was an accident, suicide – or something far more sinister.

Nick gets the South Shores team on the case, hunting down anyone with a potential grudge against the sanctuary. But their investigation turns wild when other attacks come too close to home. With a hostile predator on the loose, Nick and Claire will have to race to uncover the truth before a killer wipes them from the endangered species list for good.