← Arthur GriffithsLocked Upby Arthur GriffithsFind on Amazon↗About the authorArthur GriffithsGriffiths was a military man and prison inspector whose Inside Scotland Yard and other fiction drew on his professional knowledge to create unusually authentic crime and prison narratives.More by Arthur GriffithsFast and Loose→The Rome ExpressMystery novel set aboard a luxury train traveling from London to Rome→Secrets of the Prison HouseNonfiction examination of prison systems and criminal justice practices→No. 99→