Hi Shawnsea, welcome to MR!
A semester abroad is a wonderful thing to do--congratulations!
Yes, I see
Gaudy Night here at MR. The link is for the epub version, which I
think is what your Nook uses. But I also see a message there that there might be a problem with the file. Maybe the thing to do is to send a PM to
weatherwax who uploaded the book to see if they can help you.