Then and Always by Dani Atkins - 320 pages
Rachel embarks on a quest to determine how she can exist in two realities. To this end, it is Jimmy who helps her retrace the life she believed was hers and relate it to the life she has found herself in. In short, it is a journey of self-realization.
Atkins's writing is superb: vivid descriptions, subtle foreshadowing, and drawing out the mystery until the very end.
Lastly, in keeping with this month's theme, while in search of her missing memories she visits the library/archive of the magazine she works for to try to make sense of her life by examining the articles she wrote.