The text on the plaque reads:

“For centuries, local legends have claimed that mystical waters run beneath this great land. It is said that these waters possess the power to return that which is lost to it’s rightful place. If you have lost something precious to you, drink from this well and bear witness to this miracle as what is missing shall be returned.”

Key phrases: ”If you have lost something precious” & ”Return that which is lost to it’s rightful place”. The book is precious to Henry and he’s the one who essentially lost it not Emma. Plus it’s rightful place in with Henry not Emma. Not to mention we all know that the book returning was no work of magic anyway.

So what else did Emma lose recently that was precious, that can be returned to it’s rightful place? Graham! And where is that rightful place he’d return to? Fairytale land, because that’s where all the fairytale characters belong.

Yeah so I’m choosing to believe this either way. There is a fine line between hope and denial. The Huntsman deserve’s a happy ending in which he isn’t dead. So yeah.