Despite some excellent recent work on women’s engagement with books, the history of reading is still primarily about men. Our methods have privileged written catalogs, ownership marks, and marginalia—all of which are in scarce supply for women. My paper offers new research on a little-known woman reader: Elizabeth Stanley Hastings, Countess of Huntingdon (1588-1633). She was a bookish woman who loved intellectual discussion, actively shaped local literary culture, and belonged to a highly literate family whose members owned and marked books. She left behind no library list or ownership marks, but scattered traces of her engaged reading emerge from her five devotional manuscripts and many letters, as well as the printed dedications and manuscript poetry that John Fletcher, John Donne, Thomas Pestell, and other male authors wrote her. As these traces indicate both what and how the Countess of Huntingdon read, her case study adds to our growing understanding of the varied ways early modern women read religious texts. The Countess of Huntingdon did not passively absorb her devotional reading; she interpreted and revised the books she read. She engaged with her books not as an isolated reader, but as an influential participant in familial and local networks of textual production and reception. As my paper argues for the value of recovering female readers using a broad range of evidence, it underscores the importance of tracing networks and communities of readers.