Game of Thrones spoilers below, of course.

In the Tower of Joy flashback scene between Ned and his sister, Lyanna, the woman dying from childbirth whispers something urgent to her brother. Because HBO wasn't shy about confirming Jon Snow's true parentage in the days after the finale, Redditors fiending for next season have been intensely speculating, instead, that the obscured whisper had to do with Jon's real name.