Promising follow-up to the previous two books

As a fan of historical mysteries, I really enjoyed the first two books in the series - The Angel's Mark and The Serpent's Mark. From the opening chapters, this sounds like it has all the elements I enjoyed in the first two - an intriguing plot, great period atmosphere and the return of its two engaging lead characters, Nicholas and Bianca. Plus, with a story set in this period, you knows that if Sir Robert Cecil is involved there's going to be plenty of intrigue, and twists and turns. Can't wait to read it.