Susan Coll was already an established novelist when she started working at Politics and Prose in 2011, and she promised the store’s owners that she wouldn’t write some kind of comic behind-the-scenes account of the beloved Connecticut Avenue shop. Oops. “I assured them that was not my intention,” says Coll, who ran the store’s programming and author events. “It truly was not! It just happened.”

It’s safe to say Washington is one of the better-documented cities on Earth. Last year alone, the roster of books set in and around here included headline-snagging national bestsellers (Michael Wolff’s devastating account of the Trump-era capital, which sold 1.7 million copies in three weeks) as well as slightly less buzzy works (George Mason professor Dae Young Kim’s study of how information technology affects the region’s Korean immigrants, which almost certainly did not sell 1.7 million copies).

If you’re fascinated by unexplained phenomena, hop in a beat-up Audi with the kooky and supersmart Cassie Klein and her dog Luna for a voyage of discovery involving a giant moth, a West Virginia bridge collapse and a hot cryptozoologist. The droll Ms. Coll strikes again!