There are 2 books in the Cassandra Renfield series.
The Cassandra Renfield series does not have a new book coming out soon. The latest book, The Vision (Book 2), was published in October 2011.
The first book in the Cassandra Renfield series, The Mark, was published in January 2010.
The Cassandra Renfield series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.