Board Thread:General Discussion/@comment-26259483-20150504092325/@comment-5106672-20150505160544

I think they must be chosen and put on the job by the Apprentice or the Sorcerer. But we still don't know if there are some requirements "from above" that limit the choice, if it is fated or something, or if anyone can be chosen and put in charge.

I think Henry was unaffected by the changes mostly because he is from the Land Without Magic and such sheningans don't work on people from there. But there can be more. Perhaps, if he's the one who can change everything back to normal, then he could be rewarded by becoming the new Author.