last sentence of that departure sequence is the incomplete one that conceivably loops back to the beginning of the book. However, earlier in the novel the notebook falls to the ground and Kid reads the last page. The reader sees exactly what Kid reads: the last four sentences of the novel, word for word. This happens well before a point in the novel where Kid specifically states that he only wrote the poems, and "all that other stuff" was already in there when he received the notebook. However, those four sentences are part of a longer section at the end of the novel which, when read, was obviously written by Kid. This means he left Bellona—taking the notebook with him, for how else would he be able to write about his departure—prior to that notebook being found inside Bellona and given to him. Delany has specifically stated that it is not a matter of settling or deciding which text is authoritative. It is more a matter of allowing the reader to experience perceptual shifts in the same way that a Necker cube can be viewed. Akin to the hints regarding its circular nature, Dhalgren also contains at least one hint towards the perceptual shifts: Denny's book of M. C. Escher prints. Additionally, Jeffrey Allen Tucker has written that Delany's unpublished notes regarding the writing of Dhalgren contain direct references to the novel itself working as a Möbius Strip, and makes a direct connection to Escher's "Möbius Strip". Within the looping text that comprises Dhalgren, many other textual plays on perception can be found. Imagery and conversations, some hundreds of pages apart, closely echo each other. One case in point: The scenes on the bridge mentioned in the "Plot Summary" above. In another, light sliding across the face of a trucker driving at night is echoed in the description of light sliding across the face of a building. The repeated motif of a scratch down the lower leg of several female characters at different points in the novel is yet another example. Delany's personal experience of reality Samuel R. Delany has dyslexia and dysmetria. He once spent time in the mental health ward of a hospital. and he has repeatedly spoken and written of seeing burned-out sections of great American cities that most people didn't see, or even know existed. Dhalgren is a literary exposition of all these experiences for the