2024: Emilie and the Hollow World by Martha Wells π
A fun, quick, intelligent YA read. Victorianesque adventuring + hidden worlds + merpeople + clever banter, science-y magic, and interesting characters. I liked Emilie. Would love to read more of her adventures. Some over-explaining (e.g. βThey turned a corner and opened a door and entered the roomβ¦β βjust put them in the room!).