This book pleased me with cameo appearances of characters from the Weather Wardens series, and I liked the heroine and hero very much.
The story of Cassiel's fall from Djinn grace into human form and her experiences/adventures as she teams more and more with Weather Warden Luis Rocha was well written, and issues that another author might have left hanging (like "why didn't they just shoot her?") were explained satisfactorily along the way.
The heroine's character developed realistically and likably, and the pace of the book was just right. The only thing that stopped me giving it the full 5 stars was the ending .. basically it isn't an ending, it's a "to be continued" - it even says so!!
I like my books to stand alone, and in a way this does .. but it leaves me hanging on for the next installment (Outcast Season - Unknown) rather like I used to wait for the next weeks's installments in my comics as a kid, which I find rather irritating. I'd rather have known the fate of one particular member of the supporting characters at least, before the end of this book.
However I just hope the second book will be as good as this one, then it'll have been worth the wait.