Magpie Lane by Lucy Atkins, suspense fiction set in Oxford

Title: Magpie Lane
Author: Lucy Atkins
Publication: Quercus, hardcover, 2020
Genre: Suspense
Setting: Oxford, Great Britain

Description: Dee, now middle-aged, never made it to Oxford as a student despite her brilliance at mathematics, but she has worked there since her 20s as a nanny, mostly in short-term positions to avoid forming attachments. But Felicity, her current charge, is different.