This is book 7 of the Alex Verus series.
I realized only two nights ago that it was out, and kicked myself for not realizing it a month ago. Good thing I was ordering that tea on Amazon and the site recommended the book. Also, added Jacka to my list at Author Alerts.
I really liked this book. I really like this series (though, maybe the last one I didn't like as much). It was recommended by Jim Butcher at some point, and I'm glad I read them. I like tales Jacka spins and the mage world he has created. I like the recurring characters and the intrigue developing.
The one was pretty much all action. Verus had very little time to relax and little time to brood. The book ends on a cliffhanger, WHICH IS GREAT, as it means there's another book to follow.
I am looking forward to it.
Recommend the series.