The Gray Wolf Throne is available on Nook, but you won't find it easily on the B&N site, especially if you search under my name. The Nook version is not listed on the search page, as is the case with my other books. If you click on the GWT title, it will take you to the book page, and you'll see the Nook version there.
Or if you search the site with "The Gray Wolf Throne" you will go directly to the book page and see the Nook version here.
If you want to go directly to the Nook version, go here.
And I'm sorry for the trouble. I know what it's like to be book-hungry.