Preserve the dead - Brian McGilloway

On a humid evening in County Derry, Detective Sergeant Lucy Black is visiting her father, a patient in a secure unit in Gransha Hospital on the banks of the River Foyle. He's been hurt badly in a suspicious accident, and Lucy is shocked to discover him chained to the bed for safety. But she barely has time to take it all in before an orderly raises the alarm - a body has been spotted floating in the river below. An elderly man in a grey suit is hauled ashore: he has been cold dead for several days. A full-scale investigation is launched - could this really be the suicide they at first assumed? As Lucy and her colleagues probe more deeply, they find the truth is more bizarre than they could have imagined...