Here's the summary from Amazon:

A humorous paranormal romance by USA Today bestselling author Mindy Klasky. Sometimes a thunderstorm is just a thunderstorm. But not this time. Jane Madison’s school for witches is in session, and the first order of business is an intricate Samhain ritual. Alas, in the midst of a sudden, unseasonable deluge, a classic Greek monster is released into the magic circle. Jane succeeds in vanquishing the beast, but only with the assistance of her sworn enemy, the Coven Mother of Washington DC. Crisis averted, Jane would be perfectly happy to plan her wedding to her astral protector, David Montrose. But how can she look at seating charts when she’s under attack by more monsters, the Coven Mother, and the highest law in the witchy land, Hecate’s Court? All these disasters can’t be coincidence. One of Jane’s students must be a traitor. But will Jane find the turncoat before she loses everything—and everyone—she holds dear?

I flaked when I requested this book from LibraryThing and didn't realize that it was something like the fifth book in the series. I think that was the reason that it took me a while to get into the book- I didn't know who any of the characters were and didn't yet have an attachment to them. After a while, though, I did start to get into it and found the plot engaging. Klasky is a good writer and I think the problem was more that I dove into the series at the wrong point than any shortcomings on the writer's part. This worked as a stand alone because everything I needed to know was explained in the book, but I think I would have enjoyed it better had I read the earlier books, as well.

I'm intrigued by the idea of witches and their warders and familiars, as well as the witchy theme. I haven't read a lot of paranormal or books set in the present time, so this was something of a novelty to me. This book made a positive impression on me, so I'm going to go back and read the earlier books in the series.