Board Thread:Spoilers!/@comment-25971187-20160120073442/@comment-27060727-20160120075256

It's a direct reference to the first book that Belle's mother read to her. The following image from episode 4x06: http://onceuponatime.wikia.com/wiki/File:406LeaveWithout.png (Adam confirmed in a tweet)

And I'm also guessing that it's going to be a sarcastic reference to Gaston, the guest star of the episode.