Everything you need to understand or teach Castaway by Lucy Irvine.
Castaway is Lucy Irvine's 1983 memoir recounting her yearlong stay on an uninhabited island off the coast of Northern Australia with a much older man, fellow Brit Gerald "G" Kingsland. Free -spirited and adventurous herself, does not realize at first that she will be required to get legally married to Kingsland in order to receive permission by the Australian government to stay together on tiny, desolate Tuin Island. The two castaways must struggle for the basic necessities of survival, and are soon weakened by hunger, thirst, and related illness until the appearance of friendly local Islanders with their gifts of food and know-how save Lucy's and G's live, and alter the trajectory of their initial plan. In addition to its commentary on the effects of British colonization on the indigenous Islanders and critique of the Australian government's hypocritical double standards, Castaway also touches on themes of sexual power dynamics and social class.