An Open Book

There is a Theory or Rumor About Yen Sid's Book

The theory is that is could tie in with the story or not, but no one knows what the ties are. Their theory is that "The Beginning" is KH1, "Interlude" is CoM and The Future is KH2 or KH3.

My theory is "The Beginning" is BbS/KH1, "Interlude" is KH1/CoM/KH2 and The Future is KH2/KH3