Margaret Duffyauthor : Margaret Duffycategory : MysteryMargaret Duffy has worked for both the Inland Revenue and the Ministry of Defense. When not writing, Margaret works as a garden designer.Margaret Duffy Book SeriesDeath of a RavenTainted GroundSouvenirs of MurderCobwebDark SideBlood SubstituteRat PoisonAshes to AshesStealthCorpse in Waiting