Ariel and Erin meet through bookshelf spark.

Ariel Demure is exploring the library stacks, looking at the books arranged on a bookshelf to find ones she's interested in. Unbeknownst to her, another booklover, Erin Everheart, is on the other side of that very same bookshelf, browsing the books on her side of the shelf. Eventually, Ariel removes a book from the shelf, while Erin simultaneously removes a book directly across from it. Through the resulting gap on the shelf, both women's eyes meet for the first time, and a spark of interest forms.