Goodwin notes that in her novel The Sun in Exile (1955), Cusack deals with the general question of colonialism and anticipates virtually all the key issues in the decolonisation debate. He argues that 'a persuasive case may be made that...Dymphna Cusack was a prophet, precursor, early-warning system, even unacknowledged legislator of the many concerns of what later called itself postcolonial theory.'