Congrats! I remember when I got my first printed credit, it was an amazing feeling. I'm glad you get to experience what its like getting to work on material that you love so much.
On second thoughts, maybe you shouldn't take the job. You know what happened to the last person to dare to edit the works of his royal geekiness King Pladoh of Greyhawk? The poor guy was found guilty of heresy and wound up serving ten years in a Siberian salt mine.