Caitlin's Book of Shadows is, as it's called, a story set between books 1 and 2 of Juli D. Revezzo's Antique Magic series. As such, it's not necessarily something one should read and expect to understand without having read the first book, The Artist's Inheritance. That said, as a continuation of Caitlin's and Trevor's life, and adventures, together, Caitlin's Book of Shadows is a great story. We get to see a bit of the emotional aftermath of the events in book one, we get to see Cait and Trevor putting in effort to get their relationship back to okay, and we get to see how they begin to integrate the changes fate and life threw at them. And we get some foreshadowing of the book yet to come.
There is a trend for shorter works to be released between books, either on author websites, exclusive mailing lists, or, now, in e-book format, and as a reader, I have to say I honestly enjoy this trend, and one I'm glad Ms. Revezzo has decided to take part in.