E.Wein is amazing if you can get past the MAJOR angst in the first one The Winter Prince - which is deserved and all, considering the main character is Mordred/Medraut - but you manage Kaori Yuki Count Cain if I remember correctly, so you might not even check your stride ^^.

I had to take a breather of some days when the tension got to boiling point. And the beginning of the second novel may come as a shock, then again since it's Arthurian legend, probably not.