Having escaped to hide in Elizabethan London, Matthew and Diana must find a powerful witch teacher to help Diana control her magic and search for the elusive Book of Life. Enemies are everywhere, the threat to witches is growing, and Diana and Matthew's romance faces a barrage of new threats, from within as much as without.

"After traveling through time in Shadow of Night, the second book in Deborah Harkness's enchanting series, historian and witch Diana Bishop and vampire scientist Matthew Clairmont return to the present to face new crises and old enemies. At Matthew's ancestral home at Sept-Tours, they reunite with the cast of characters from A Discovery of Witches--with one significant exception. But the real threat to their future has yet to be revealed, and when...

Scholar Diana Bishop mistakenly requests a bewitched manuscript for her research. She belongs to a family of witches--but because she's avoiding using her powers in favor of scientific pursuits, she sends the manuscript back into storage. What she doesn't realize is, she's already started down a path toward a life she wants to avoid.