Some additional material was posted for chapter 3, here is some links:
http://groups.yahoo.com/g...CaerAzkaban/message/66074
http://groups.yahoo.com/g...CaerAzkaban/message/66310
http://groups.yahoo.com/g...CaerAzkaban/message/66074
http://groups.yahoo.com/g...CaerAzkaban/message/66310