As Victor's cousin, Elizabeth will also play other family roles as "sister," substitute "mother," and finally "wife." In 1831 Mary Shelley changed Elizabeth's role into that of a foundling, unrelated to Victor by blood. Some modern critics believe this 1831 change avoids the possibility of incest in the 1818 novel and makes the later novel more conservative in implication. For the first arguments of this kind, see Ellen Moers, "Female Gothic: The Monster's Mother," The New York Review of Books, 21, no. 4 (March 21, 1974) and "Female Gothic: Monsters, Goblins, and Freaks," The New York Review of Books, 21, no. 5 (April 4, 1974).