The Book of Life

The Book of Life is the third and final installment of the All Souls Trilogy. It was published on July 15, 2014 in hardback, e-book, and audiobook in the US, UK, Canada, and Ireland.

On January 9, 2014, the United States front cover and a two page excerpt were released to the public on USA Today. On May 12, 2014, chapter 1 was released on Harkness's website, courtesy of Viking and Headline. Chapter 1 was made available to readers in the United Kingdom, Australia, and New Zealand via iTunes.

Summary
After traveling through time in Shadow of Night, 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 it is, the search for Ashmole 782 and its miss­ing pages takes on even more urgency. In the tril­ogy's final volume, Harkness deepens her themes of power and passion, family and caring, past deeds and their present consequences. In ancestral homes and university laboratories, using ancient knowl­edge and modern science, from the hills of the Auvergne to the palaces of Venice and beyond, the couple at last learn what the witches discovered so many centuries ago.