This is, by far, the best book in the series. Read it.
This review will have a couple (what I consider to be minor) spoilers, so you can stop here and go read the book if you don't want to be spoiled. If you don't care, read on.
The book starts with Ilsa, the main character, training with swords as a butcher in Prague. Right from the first page, the novel establishes tension, with an unknown enemy just outside Ilsa's door, waiting, hunting. Her dog, Ozzie, is growling at the door, which she never does. Cautious, Ilsa calls her friend and fellow butcher, Ram, who comes over immediately and tells her to stay out of sight. He'll be over immediately.
The tension continues building from there. Ilsa longs to return to a home that she can't remember; she sees it in her dreams, razed by dragons and fire. As she wonders about the unseen enemy outside her door, a young man named Ion shows up and tells her that her father wants her to come home. Despite Ram's misgivings, they go.
Now, to me, it becomes obvious early on that the three characters (Ilsa, Ram, and Ion) aren't entirely what they seem on the surface. Judging by the title of the book, I figured they were dragons, and I was proven right fairly early in the book. It's not about a secret mission to become a dragon, though. It's more about Ilsa finding herself and becoming comfortable with what and who she is, discovering what happened in her life. That's why I consider ILSA IS A DRAGON!!! to be a minor spoiler. The real question is, what are the Yagi (the mysterious enemy that has been hunting her) and who is sending them after her?
Who is Ion, and what does he really want with her? Is he a bad guy? Is he a good guy?
Who is Ram, and why does Ilsa's father trust him so much?
The best part about this book is that Ilsa does not need to be saved. She is a capable young woman who thinks on her feet, and at times, her wings, in order to solve problems to which she's had no previous exposure. She learns the Yagi's weakness without being told what it is, and then, when things look bleak for her friend, she comes through for him, too. Not just once, but several times.
Instead of playing the part of the undefeatable hero, Ram is more of a guide and a protector, helping Ilsa come into her own without overshadowing her. It was nice to have a book with a hero team who both acted to defend each other. And while I think the male characters are a tad OVERprotective, it doesn't influence what Ilsa does to protect herself. That is... She doesn't sit safely in a box while the men do all the work.
I highly recommend this book. It does come to a somewhat abrupt end, which foreshadows the rather tired, cliche themes of the next three books that follow, but this story itself is worth the read. I kind of want to caution people to stop with this one and not go onto the next ones, but book five in the series (Dracul) is also very well-written, and you can't read that one without reading the three in between.
This does work as a standalone book, though, so if you read one book by this author, this is the one I recommend!