The Rising Tide (Vera Stanhope, 10)

One of Britain's best crime writers' – Daily Express
Shallow waters hide the deepest secrets. Vera Stanhope, star of ITV’s Vera, returns in The Rising Tide, the tenth entry in number one bestseller Ann Cleeves’s acclaimed series.
Fifty years ago, a group of teenagers spent a weekend on Holy Island, forging a bond that has lasted a lifetime. Now, they still return every five years to celebrate their friendship, and remember the friend they lost to the rising waters of the causeway at the first reunion.
Now, when one of them is found hanged, Vera is called in. Learning that the dead man had recently been fired after misconduct allegations, Vera knows she must discover what the friends are hiding, and whether the events of many years before could have led to murder then, and now . . .
But with the tide rising, secrets long-hidden are finding their way to the surface, and Vera and the team may find themselves in more danger than they could have believed possible . . .