There are 2 books in the Nightshade Chronicles series.
The Nightshade Chronicles series does not have a new book coming out soon. The latest book, The White Assassin (Book 2), was published in October 2011.
The first book in the Nightshade Chronicles series, Nightshade City, was published in June 2011.
The Nightshade Chronicles series primarily falls into the Fantasy genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.