The Unseen World: a Novel / Liz Moore, 451 pp.

13-year-old Ada Sibelius leads a very special life in 1980s Boston.  Her father, David Sibelius, runs a computer science lab at the BIT (Boston Institute of Technology, you get the idea), and as a single parent, he homeschools Ada while she works in the lab, takes her on delightful and enriching outings, and generally creates a loving world for her in almost complete isolation from her peers.  And Ada is happy until David's memory begins to fail.  Then Ada's life is turned upside-down and bewildering secrets surface.

A thoughtful meditation on artificial intelligence, virtual reality, and identity, this was ably and unobtrusively read by Lisa Flanagan.  Not a thrill ride, but an intelligent and engaging listen.