The Thief Lord by Cornelia Funke Prosper and Bo run away to Venice after the death of their mother where they are taken in by a group of orphans. Themes If you see then click to see more information for a theme. Please take care as context may contain descriptions of a sensitive nature and/or spoilers. Mistreatment Death OrphansVeniceFamilyFriendshipIdentity SurvivalMysterySecretsLack Of AffectionLoyaltyRebellionBetrayalPoverty