Paul Auster’s novels usually focus on the art of writing, and his main characters are most often writers of some sort. These writers struggle with problems that arise from the relationship between the writer and his product and in many of Auster’s novels there is a certain space where the act of writing takes place, a space into which his character writers seem to disappear while they are writing. This space is somewhere beyond the world in which the character author lives, but still it is a place outside of the completed fiction which the writer has created. It is rather a space in between the two worlds. This space only exists during the time writing takes place; not before nor after. Therefore, I have chosen to call the created space a transient space. This essay discusses the meaning of such a transient space, and also the relationship between text and author/writer, as portrayed in Paul Auster’s writing. The focus is on his latest novel Oracle Night, but meta-comments from some of his earlier essays and novels are also used to highlight certain issues. As a theoretical base Gilles Deleuze’s and Felix Guattari’s ideas on rhizomatic writing as a way of mapping the world are used. The role of the author is also further highlighted, mainly using comments from Maurice Blanchot. Auster’s rhizomatic writing makes every word significant. He is also opening up traditional boundaries of fiction by making use of the textual space in a new way. All of his created spaces have the effect of destabilizing conventional boundaries between space and time.