Board Thread:Show-Related Questions and Answers/@comment-25926288-20150722154019/@comment-5106672-20150722160114

I think the Authors… I mean, Isaac ignored that plot point.

More seriously, I think he didn't even know what happened during the missing year, including Charming not having a heart and sharing Snow's. We know the only ture limitation to his story writing was not being able to bring back people who were already dead; Charming was alive and well courtesy of Snow's recklessness. Isaac wrote him with his own heart and had it controlled by Snow and that worked within the borders of his fictional world. Most likely, that was reversed once everyone made it back to the real world, as were all life and death changes that happened in his fictional world.