Booksamillion.com lists book 2 in Scott Ciencin's TF series as Transformers: Annihilation.
You can see the listing HERE
Additionally, Amazon.com has recently added a new Transformers novel by Scott Ciencin to their list of upcomming books.
The new novel (book 3 in Scott Ciencin's series) is entitled Transformers: Fusion. TF:Fusion is scheduled for release in January 2004.
You can see the listing HERE