Two things would make this series better.
1. Fang gets lines.
2. Tabitha dies in a truly horrific way two pages into the next book. And keeps dying in ever more horrific ways every time she pops her obnoxious head above the parapet. It isn't a good sign when I spend the entirety of every scene she's in hoping that someone kills her. It would make my year if the next time she opens her stupid mouth Fang eats her. And then, because no-one in this fucking series can stay fucking dead, when she comes back, Fang eats her again. And finishes with a pithy one liner. And a good belch.