The Stone of Tymora series does not have a new book coming out soon. The latest book, The Shadowmask (Book 2), was published in November 2009.
The first book in the Stone of Tymora series, The Stowaway, was published in September 2008.
The Stone of Tymora series primarily falls into the Heroic Fantasy / Sword & Sorcery genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.