Board Thread:General Discussion/@comment-24589671-20141222210529/@comment-24674051-20150114142705

Well, considering that Belle was Regina's "Guest" when Hook came back to the EF, it would have to be someone that actually knew she was holding her. Keep in mind that Rumple thought Belle was dead, and given his uncanny collection of knowledge, it would take quite a bit of active work to make sure there was not even a whisper that would betray Belle's presence. So Regina probably did not tell anyone. But she possibly might have confided in her one friend, particularly knowing that neither was a fan of Rumple's.