Irishman Adrian McKinty offers a new adventure of his cop Sean Duffy, Catholic, tortured and humorless.

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with Promises under bullets, Adrian McKinty invites us to Northern Ireland. The highlight of the book is taken from this promise by Jose Luis Borges Blue tigers : “I don't know what your contribution is, but mine is dangerous. Day and night, wisdom, habits, you dwell there with the world. Following this introduction, dive into Carrickfergus near Belfast.

Detective Sean Duffy of the RUC, the police of Northern Ireland, finds himself facing a fascinating textbook case. A young man named Michael Kelly is said to have killed his parents with two well-placed bullets before throwing himself off a cliff, which is unforgivable. A priori, there is no doubt about revenge or the fall, but something is bothering Sean. His senses tell him otherwise. When Sean is in this state, there is cause for concern. “Out my office window, the rain falls on the coal boats, barges and dredgers in Belfast Inlet. Dirty boats in dirty water. Melancholic thoughts and a few lines from John Masfield about the sea or noble or sad cargo ships pass through my mind.