When I clicked on the B&N link in OP's message, it took me to a (shudder) hardcover version at (more shudders) $18.12. Paging down to the "other formats" area, however, I found the link to the Nook version at $2.99 as discussed (sigh of relief).
The direct link to the $2.99 Nook version for those who want to skip my histrionics is
here.
- Sue