Shadow of Night by Deborah Harkness
My rating: 3 of 5 stars
As with A Discovery of Witches, this book is overlong and studded with references to famous people and events. There were many times I found myself thinking "that paragraph could go... so could that sentence" - if the third book is the same, the series will be over 1500 pages long.
At times it might have made more sense (and tightened the writing) to not have so many famous names involved. For example, the scenes with Queen Elizabeth (the first, not the current Queen) required much set-up, yet it seemed their only purpose was to continue to impress on us how important Matthew's life had been in the 1590s. It also started to get on my nerves how many times the author mentioned "the house was filled with daemons, vampires and witches" (or something similar).
Having griped about that, I wasn't annoyed enough to stop reading - with less filler, the story of Matthew, Diana, their families and the search for Ashmole 782 would have been even better.