The Final Throw - A Theo Stern Mystery, #8

Theo Stern's dreams of retirement are shattered when a threat from his past suddenly rears its head and he's forced to face its life threatening consequences. With a history of over forty years' hard front line detective work, a weary Theo Stern is convinced it's time to call it a day. He dreams of a carefree retirement by the sea. But when a woman asks for help to find a missing boy, Stern is persuaded by Cherry, his devoted assistant, to take the case.
Just this one, he warns, then it's over. But when this last throw of the dice becomes one of the most threatening of Stern's whole career, all thoughts of retirement are pushed to one side. And there's no turning back.