The youngest child of Oberon and his fifth wife, Harla Chantris.

Where his elder siblings excelled at physical arts, Isaac was a politician by trade, and was responsible for negotiating several tricky Golden Circle treaties. Isaac was his mother’s most vocal supporter, and he frequently clashed with the red-heads as Harla attempted to have Clarissa’s children declared illegitimate (Harla cited Clarissa’s conviction for treason as cause). He is widely assumed to have been killed in a duel with Bleys.