August W. Booth is awfully interested in Henry’s book. We’ve already seen him adding pages to it with great care. In episode 17, we saw August prompt Henry to search his book for clues.
Awhile back, people were wondering where Henry got his book from. We know it was from Mary Margaret, but where did she get it? Perhaps August had been to SB before and planted the book in Mary Margaret’s classroom for her to discover it and eventually pass it onto Henry. We have some reason to believe that August has been to SB before based on his conversation in the diner with Emma and Regina’s remark that he looks familiar.
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy