| Alle bekende ISBN nummers van Empire: 9789058851550 1 De spookgeneraal (2007 : Silvester - Hardcover) x42ym1 9789058851833 2 Lady Shelley (2007 : Silvester - Hardcover) 15fqq2 9789058852342 3 Operatie Overlord (2008 : Silvester - Hardcover) 56siu3 9789463061926 4 De mutator (2017 : Silvester - Hardcover) 3h91j3 | ||