Okay, some of peoples maybe know the news that Bubbline is canon but I think it is NOT CANON. Olivia Olson said that she is joking. She said it in her Twitter but it deleted because many peoples hate it. Goodness, some one who retweet her post. It said "I like to make things up at panels. Ya'll take my stories way too seriously..."
So what is your opinion???
Link to video about the news: https://www.youtube.com/watch?v=AZV223FM19Y
Link on her Reddit about the news: http://www.reddit.com/r/adventuretime/comments/2d0ees/olivia_olson_addresses_the_reveal_at_the_book/
Link on someone Twitter about the news: https://mobile.twitter.com/VirgoWayne/status/500540049524396032