Audiobook Blood Family, written by Graeme Hampton. All families have secrets. some are deadly. When D. I. Matthew Denning is called to investigate a house fire in a North London street, he never anticipated the horrors that awaited him. As Denning and D. S. Molly Fisher search the wreckage, the bodies of the Galloway family – Brian and Ellie, son Simon, daughter Amber and 9-year-old grandson Caleb – are discovered in the smouldering house.