This article analyses the motif of fairy abduction in the works of contemporary Irish-language poet Nuala Ní Dhomhnaill. It draws particular attention to Ní Dhomhnaill's series of Bean an Leasa poems, from her collections _Féar Suaithinseach_ (1984) and _Feis_ (1991). The fairy woman who gives her name to the two series of poems abducts humans and takes the narrator hostage, depriving them of their free will. Ní Dhomhnaill depicts characters crossing the threshold of worlds, in-between the real and the Other- worlds, in-between fiction and reality, in-between the Irish and English languages. This study examines the significance of liminality in the Bean an Leasa poems. Whether it be the characters, straddling the border between two worlds, the language, or the poems themselves, partaking of the folk tradition while being a contemporary piece of literature, the Bean an Leasa series are inherently liminal. This reflects the situation of the writer herself, moving between languages, places and cultures. Ní Dhomhnaill's reuse of Irish folk tradition is studied under the light of Deleuze and Guattari's concept of de/reterritoralisation: her rewritings of Bean an Leasa are a reterritorialisation of Irish folklore as well as of the author herself.