A Druid in Queen Regina's Court

After mysteriously finding a new chapter in Henry's storybook, Emma meets a mysterious old man who isn't what he seems. Once figuring out who put the new chapter in the book, Emma and the visitor must put an end to the chaos as the witch plans to overthrow Regina, all the while helping him find someone named Arthur. (DISCLAIMER: I DO NOT OWN OUAT OR MERLIN OR ANY CHARACTERS)