So I was given these first 6 books for Christmas and read them all the same day; I'm just gonna leave my comments here since there apparently isn't a consolidated version (i.e., books 1-6 anthology).

An interesting mix of historical and science fiction; I may need to go back and read the other books, because I liked them pretty well and it's a series that probably deserves to be completed. As a side note, I found it a little weird that even JB's colleagues called him by the nickname Katherine gave him.