Masterton, Graham. Patel & Pardoe series #bk. 5

"An Aries book."

"A clergyman is murdered in his bed in the dead of night, triggering a chilling chain of events, each more bizarre and unnerving than the last - brutal killings, corpses vanishing, decomposed bodies digging their way out of graves. Nothing seems to connect these horrifying crimes other than witnesses reporting seeing swarms of flies - hundreds, thousands, even millions of them. As DI Patel and DS Pardoe hunt for answers, they are forced to ask: is the person responsible even human, or is all of this linked to the mysterious figure caught on CCTV, running at speed without moving their legs?"--Flap page 1 of dust jacket