Germaine Guèvremont’s Acayenne is perhaps the most famous Acadian character in Québec literature. Her Acadianness, however, has never been studied. The author’s biography shows that, unlike the Chenal du Moine and the Sorel region, which Guèvremont visited over a lengthy period, Acadia was a land that was first and foremost imagined. This article aims to lay the groundwork for a reflection on the presence of the Acayenne in her imagination. Paradoxically, Guèvremont’s remoteness from Acadia allows her to express the familial, because otherness disguises the intimate sufficiently to make it emerge without offending her modesty. Alphonsine, the novel’s main character, calls the Acayenne the “Other” to better repress this familiarity. Their relationship is placed under the sign of the Unheimlich as conceptualized by Freud. The familiar hides beneath the foreign, through which the Acayenne reflects Guèvremont’s intense relationship with her mother, Valentine Labelle, and the shadow cast on her by the death of her older sister, who left her the name Germaine. We will also see that, if the Acayenne allows Guèvremont to express the grief that struck her mother, it is notably because of the discreet, yet important intertextuality of Longfellow’s Evangeline.