GRAHAM MASTERTON was born in Edinburgh in 1946, and at the age of 17 he joined his local newspaper as a junior reporter. He was appointed deputy editor of Mayfair at the age of 21, and at 24 he became executive editor of Penthouse. After leaving Penthouse, he wrote The Manitou, a horror novel that became his first bestseller and was adapted into a film starring Tony Curtis.

Graham spent twenty-five years as one of the world’s bestselling horror authors before he turned his talent to crimewriting. Inspired by the five years in which he and his late wife lived in Cork, he created a series of novels featuring Katie Maguire, the first female superintendent in the Irish police force. The first book in the Katie Maguire series, White Bones, was published by Head of Zeus in 2012 and became a top-ten bestseller. Graham continues to write thrillers and horror novels alongside the Katie Maguire crime series, which has now sold over a million copies worldwide.