User blog comment:YazzyDream/Only 4 More Episodes Left in the Season!/@comment-71.172.3.81-20130418225356/@comment-24048881-20130418230506

http://gravityfalls.wikia.com/wiki/User_blog:Mattfan120/Old_Man_McGucket:_Crazy_or_Smart%3F Here check this out if you want to know who wrote the books.