There are 4 books in the Return to Titanic series.
The Return to Titanic series does not have a new book coming out soon. The latest book, Overboard (Book 4), was published in January 2012.
The first book in the Return to Titanic series, Time Voyage, was published in January 2012.
The Return to Titanic series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.