She might have been spirited away by a lover who represents an unknown future, a new experience whose spell has liberated her from the shackles of an unhappy marriage.
Then again, it is quite possible that she is truly the beloved wife of an ancient god in a tragic myth, departed from this world and cloaked beneath the blind veil of the damned, oblivious to her husband's doomed rescue attempt.
Perhaps the truth is somewhere beyond.
All we know for certain about this mistress of mystery is that she's the current occupant of Room 420.