I’ve just finished “Shadow of Night” by Deborah Harkness and already I’m impatient for the third book in the All Souls Trilogy to be released – I want to know what happens next with historian Diana and scientist (and vampire) Matthew. I’m impatient like that. Shadow of Night picks up right where “A Discovery of Witches” leaves off  (and if you haven’t read the first book, stop right here and go read it – I don’t want to spoil anything for you) with Diana and Matthew ready to time walk elsewhere in history so that Diana can find a witch to teach her (she’s avoided using her powers and so…